Home / 402,269.09-603,409.14-102,752.15

Finding the Fourth Proportional to 402,269.09, 603,409.14 and 102,752.15

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Solution

The fourth proportional to 402,269.09, 603,409.14 and 102,752.15 is: 154,129.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,269.09 : 603,409.14 = 102,752.15 : x
  2. Step 2: Convert to fraction form
    402,269.09/603,409.14 = 102,752.15/x
  3. Step 3: Cross multiply
    402,269.09x = 603,409.14 × 102,752.15
  4. Step 4: Simplify right side
    402,269.09x = 62,001,587,973.17
  5. Step 5: Solve for x
    x = 62,001,587,973.17/402,269.09
  6. Step 6: Final answer
    x = 154,129.63

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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.