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Finding the Fourth Proportional to 617,145.52, 926,244.28 and 243,430.96

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Solution

The fourth proportional to 617,145.52, 926,244.28 and 243,430.96 is: 365,353.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,145.52 : 926,244.28 = 243,430.96 : x
  2. Step 2: Convert to fraction form
    617,145.52/926,244.28 = 243,430.96/x
  3. Step 3: Cross multiply
    617,145.52x = 926,244.28 × 243,430.96
  4. Step 4: Simplify right side
    617,145.52x = 225,476,534,274.91
  5. Step 5: Solve for x
    x = 225,476,534,274.91/617,145.52
  6. Step 6: Final answer
    x = 365,353.92

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Similar ratio
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1.5x scale

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.