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Finding the Fourth Proportional to 387,559.80, 581,351.04 and 107,077.32

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Solution

The fourth proportional to 387,559.80, 581,351.04 and 107,077.32 is: 160,619.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,559.80 : 581,351.04 = 107,077.32 : x
  2. Step 2: Convert to fraction form
    387,559.80/581,351.04 = 107,077.32/x
  3. Step 3: Cross multiply
    387,559.80x = 581,351.04 × 107,077.32
  4. Step 4: Simplify right side
    387,559.80x = 62,249,511,342.41
  5. Step 5: Solve for x
    x = 62,249,511,342.41/387,559.80
  6. Step 6: Final answer
    x = 160,619.11

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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.