Home / 291,666.28-437,508.78-91,988.52

Finding the Fourth Proportional to 291,666.28, 437,508.78 and 91,988.52

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Solution

The fourth proportional to 291,666.28, 437,508.78 and 91,988.52 is: 137,985.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,666.28 : 437,508.78 = 91,988.52 : x
  2. Step 2: Convert to fraction form
    291,666.28/437,508.78 = 91,988.52/x
  3. Step 3: Cross multiply
    291,666.28x = 437,508.78 × 91,988.52
  4. Step 4: Simplify right side
    291,666.28x = 40,245,785,159.21
  5. Step 5: Solve for x
    x = 40,245,785,159.21/291,666.28
  6. Step 6: Final answer
    x = 137,985.73

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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.