Home / 387,744.12-581,616.32-121,525.29

Finding the Fourth Proportional to 387,744.12, 581,616.32 and 121,525.29

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Solution

The fourth proportional to 387,744.12, 581,616.32 and 121,525.29 is: 182,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,744.12 : 581,616.32 = 121,525.29 : x
  2. Step 2: Convert to fraction form
    387,744.12/581,616.32 = 121,525.29/x
  3. Step 3: Cross multiply
    387,744.12x = 581,616.32 × 121,525.29
  4. Step 4: Simplify right side
    387,744.12x = 70,681,091,349.11
  5. Step 5: Solve for x
    x = 70,681,091,349.11/387,744.12
  6. Step 6: Final answer
    x = 182,287.98

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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.