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Finding the Fourth Proportional to 298,920.48, 448,283.21 and 99,187.23

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Solution

The fourth proportional to 298,920.48, 448,283.21 and 99,187.23 is: 148,748.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,920.48 : 448,283.21 = 99,187.23 : x
  2. Step 2: Convert to fraction form
    298,920.48/448,283.21 = 99,187.23/x
  3. Step 3: Cross multiply
    298,920.48x = 448,283.21 × 99,187.23
  4. Step 4: Simplify right side
    298,920.48x = 44,463,971,412.49
  5. Step 5: Solve for x
    x = 44,463,971,412.49/298,920.48
  6. Step 6: Final answer
    x = 148,748.50

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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.