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Finding the Fourth Proportional to 508,476.60, 762,690.60 and 171,484.20

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Solution

The fourth proportional to 508,476.60, 762,690.60 and 171,484.20 is: 257,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,476.60 : 762,690.60 = 171,484.20 : x
  2. Step 2: Convert to fraction form
    508,476.60/762,690.60 = 171,484.20/x
  3. Step 3: Cross multiply
    508,476.60x = 762,690.60 × 171,484.20
  4. Step 4: Simplify right side
    508,476.60x = 130,789,387,388.52
  5. Step 5: Solve for x
    x = 130,789,387,388.52/508,476.60
  6. Step 6: Final answer
    x = 257,218.10

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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.