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Finding the Fourth Proportional to 292,427.90, 438,301.65 and 134,672.30

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Solution

The fourth proportional to 292,427.90, 438,301.65 and 134,672.30 is: 201,851.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,427.90 : 438,301.65 = 134,672.30 : x
  2. Step 2: Convert to fraction form
    292,427.90/438,301.65 = 134,672.30/x
  3. Step 3: Cross multiply
    292,427.90x = 438,301.65 × 134,672.30
  4. Step 4: Simplify right side
    292,427.90x = 59,027,091,299.30
  5. Step 5: Solve for x
    x = 59,027,091,299.30/292,427.90
  6. Step 6: Final answer
    x = 201,851.78

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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.