Home / 291,711.20-402,561.44-157,575.20

Finding the Fourth Proportional to 291,711.20, 402,561.44 and 157,575.20

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Solution

The fourth proportional to 291,711.20, 402,561.44 and 157,575.20 is: 217,453.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,711.20 : 402,561.44 = 157,575.20 : x
  2. Step 2: Convert to fraction form
    291,711.20/402,561.44 = 157,575.20/x
  3. Step 3: Cross multiply
    291,711.20x = 402,561.44 × 157,575.20
  4. Step 4: Simplify right side
    291,711.20x = 63,433,696,619.60
  5. Step 5: Solve for x
    x = 63,433,696,619.60/291,711.20
  6. Step 6: Final answer
    x = 217,453.76

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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.