Home / 291,627.27-402,445.67-157,491.27

Finding the Fourth Proportional to 291,627.27, 402,445.67 and 157,491.27

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Solution

The fourth proportional to 291,627.27, 402,445.67 and 157,491.27 is: 217,337.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,627.27 : 402,445.67 = 157,491.27 : x
  2. Step 2: Convert to fraction form
    291,627.27/402,445.67 = 157,491.27/x
  3. Step 3: Cross multiply
    291,627.27x = 402,445.67 × 157,491.27
  4. Step 4: Simplify right side
    291,627.27x = 63,381,678,886.84
  5. Step 5: Solve for x
    x = 63,381,678,886.84/291,627.27
  6. Step 6: Final answer
    x = 217,337.97

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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.