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Finding the Fourth Proportional to 292,216.60, 438,195.30 and 134,493.40

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Solution

The fourth proportional to 292,216.60, 438,195.30 and 134,493.40 is: 201,680.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,216.60 : 438,195.30 = 134,493.40 : x
  2. Step 2: Convert to fraction form
    292,216.60/438,195.30 = 134,493.40/x
  3. Step 3: Cross multiply
    292,216.60x = 438,195.30 × 134,493.40
  4. Step 4: Simplify right side
    292,216.60x = 58,934,375,761.02
  5. Step 5: Solve for x
    x = 58,934,375,761.02/292,216.60
  6. Step 6: Final answer
    x = 201,680.45

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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.