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Finding the Fourth Proportional to 342,416.64, 472,553.28 and 191,487.36

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Solution

The fourth proportional to 342,416.64, 472,553.28 and 191,487.36 is: 264,262.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,416.64 : 472,553.28 = 191,487.36 : x
  2. Step 2: Convert to fraction form
    342,416.64/472,553.28 = 191,487.36/x
  3. Step 3: Cross multiply
    342,416.64x = 472,553.28 × 191,487.36
  4. Step 4: Simplify right side
    342,416.64x = 90,487,980,046.54
  5. Step 5: Solve for x
    x = 90,487,980,046.54/342,416.64
  6. Step 6: Final answer
    x = 264,262.80

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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.