Home / 372,129.12-557,859.96-147,338.19

Finding the Fourth Proportional to 372,129.12, 557,859.96 and 147,338.19

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Solution

The fourth proportional to 372,129.12, 557,859.96 and 147,338.19 is: 220,875.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,129.12 : 557,859.96 = 147,338.19 : x
  2. Step 2: Convert to fraction form
    372,129.12/557,859.96 = 147,338.19/x
  3. Step 3: Cross multiply
    372,129.12x = 557,859.96 × 147,338.19
  4. Step 4: Simplify right side
    372,129.12x = 82,194,076,779.87
  5. Step 5: Solve for x
    x = 82,194,076,779.87/372,129.12
  6. Step 6: Final answer
    x = 220,875.15

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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.