Home / 424,476.09-636,792.89-140,186.34

Finding the Fourth Proportional to 424,476.09, 636,792.89 and 140,186.34

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Solution

The fourth proportional to 424,476.09, 636,792.89 and 140,186.34 is: 210,305.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,476.09 : 636,792.89 = 140,186.34 : x
  2. Step 2: Convert to fraction form
    424,476.09/636,792.89 = 140,186.34/x
  3. Step 3: Cross multiply
    424,476.09x = 636,792.89 × 140,186.34
  4. Step 4: Simplify right side
    424,476.09x = 89,269,663,886.19
  5. Step 5: Solve for x
    x = 89,269,663,886.19/424,476.09
  6. Step 6: Final answer
    x = 210,305.52

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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.