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Finding the Fourth Proportional to 342,347.28, 472,474.56 and 197,157.82

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Solution

The fourth proportional to 342,347.28, 472,474.56 and 197,157.82 is: 272,098.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,347.28 : 472,474.56 = 197,157.82 : x
  2. Step 2: Convert to fraction form
    342,347.28/472,474.56 = 197,157.82/x
  3. Step 3: Cross multiply
    342,347.28x = 472,474.56 × 197,157.82
  4. Step 4: Simplify right side
    342,347.28x = 93,152,054,255.06
  5. Step 5: Solve for x
    x = 93,152,054,255.06/342,347.28
  6. Step 6: Final answer
    x = 272,098.13

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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.