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Finding the Fourth Proportional to 256,931.36, 385,301.19 and 88,404.02

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Solution

The fourth proportional to 256,931.36, 385,301.19 and 88,404.02 is: 132,573.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,931.36 : 385,301.19 = 88,404.02 : x
  2. Step 2: Convert to fraction form
    256,931.36/385,301.19 = 88,404.02/x
  3. Step 3: Cross multiply
    256,931.36x = 385,301.19 × 88,404.02
  4. Step 4: Simplify right side
    256,931.36x = 34,062,174,106.78
  5. Step 5: Solve for x
    x = 34,062,174,106.78/256,931.36
  6. Step 6: Final answer
    x = 132,573.05

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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.