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Finding the Fourth Proportional to 298,935,602.40, 448,403,403.60 and 238,469,426.40

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Solution

The fourth proportional to 298,935,602.40, 448,403,403.60 and 238,469,426.40 is: 357,704,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,935,602.40 : 448,403,403.60 = 238,469,426.40 : x
  2. Step 2: Convert to fraction form
    298,935,602.40/448,403,403.60 = 238,469,426.40/x
  3. Step 3: Cross multiply
    298,935,602.40x = 448,403,403.60 × 238,469,426.40
  4. Step 4: Simplify right side
    298,935,602.40x = 106,930,502,452,299,696
  5. Step 5: Solve for x
    x = 106,930,502,452,299,696/298,935,602.40
  6. Step 6: Final answer
    x = 357,704,139.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.