Home / 387,637.60-581,629.20-177,167.20

Finding the Fourth Proportional to 387,637.60, 581,629.20 and 177,167.20

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Solution

The fourth proportional to 387,637.60, 581,629.20 and 177,167.20 is: 265,829.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,637.60 : 581,629.20 = 177,167.20 : x
  2. Step 2: Convert to fraction form
    387,637.60/581,629.20 = 177,167.20/x
  3. Step 3: Cross multiply
    387,637.60x = 581,629.20 × 177,167.20
  4. Step 4: Simplify right side
    387,637.60x = 103,045,616,802.24
  5. Step 5: Solve for x
    x = 103,045,616,802.24/387,637.60
  6. Step 6: Final answer
    x = 265,829.78

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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.