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Finding the Fourth Proportional to 298,897.71, 448,035.15 and 130,372.79

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Solution

The fourth proportional to 298,897.71, 448,035.15 and 130,372.79 is: 195,423.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,897.71 : 448,035.15 = 130,372.79 : x
  2. Step 2: Convert to fraction form
    298,897.71/448,035.15 = 130,372.79/x
  3. Step 3: Cross multiply
    298,897.71x = 448,035.15 × 130,372.79
  4. Step 4: Simplify right side
    298,897.71x = 58,411,592,523.57
  5. Step 5: Solve for x
    x = 58,411,592,523.57/298,897.71
  6. Step 6: Final answer
    x = 195,423.35

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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.