Home / 291,538.08-437,157-133,631.28

Finding the Fourth Proportional to 291,538.08, 437,157 and 133,631.28

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Solution

The fourth proportional to 291,538.08, 437,157 and 133,631.28 is: 200,378.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,538.08 : 437,157 = 133,631.28 : x
  2. Step 2: Convert to fraction form
    291,538.08/437,157 = 133,631.28/x
  3. Step 3: Cross multiply
    291,538.08x = 437,157 × 133,631.28
  4. Step 4: Simplify right side
    291,538.08x = 58,417,849,470.96
  5. Step 5: Solve for x
    x = 58,417,849,470.96/291,538.08
  6. Step 6: Final answer
    x = 200,378.11

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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.