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Finding the Fourth Proportional to 342,151.32, 472,148.28 and 189,180.30

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Solution

The fourth proportional to 342,151.32, 472,148.28 and 189,180.30 is: 261,057.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,151.32 : 472,148.28 = 189,180.30 : x
  2. Step 2: Convert to fraction form
    342,151.32/472,148.28 = 189,180.30/x
  3. Step 3: Cross multiply
    342,151.32x = 472,148.28 × 189,180.30
  4. Step 4: Simplify right side
    342,151.32x = 89,321,153,254.88
  5. Step 5: Solve for x
    x = 89,321,153,254.88/342,151.32
  6. Step 6: Final answer
    x = 261,057.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.