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Finding the Fourth Proportional to 508,256.10, 762,454.62 and 171,393.30

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Solution

The fourth proportional to 508,256.10, 762,454.62 and 171,393.30 is: 257,113.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,256.10 : 762,454.62 = 171,393.30 : x
  2. Step 2: Convert to fraction form
    508,256.10/762,454.62 = 171,393.30/x
  3. Step 3: Cross multiply
    508,256.10x = 762,454.62 × 171,393.30
  4. Step 4: Simplify right side
    508,256.10x = 130,679,613,422.05
  5. Step 5: Solve for x
    x = 130,679,613,422.05/508,256.10
  6. Step 6: Final answer
    x = 257,113.71

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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.