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Finding the Fourth Proportional to 291,625.91, 402,443.76 and 157,489.91

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Solution

The fourth proportional to 291,625.91, 402,443.76 and 157,489.91 is: 217,336.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,625.91 : 402,443.76 = 157,489.91 : x
  2. Step 2: Convert to fraction form
    291,625.91/402,443.76 = 157,489.91/x
  3. Step 3: Cross multiply
    291,625.91x = 402,443.76 × 157,489.91
  4. Step 4: Simplify right side
    291,625.91x = 63,380,831,542.46
  5. Step 5: Solve for x
    x = 63,380,831,542.46/291,625.91
  6. Step 6: Final answer
    x = 217,336.08

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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.