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Finding the Fourth Proportional to 291,650.88, 402,478.22 and 157,514.88

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Solution

The fourth proportional to 291,650.88, 402,478.22 and 157,514.88 is: 217,370.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,650.88 : 402,478.22 = 157,514.88 : x
  2. Step 2: Convert to fraction form
    291,650.88/402,478.22 = 157,514.88/x
  3. Step 3: Cross multiply
    291,650.88x = 402,478.22 × 157,514.88
  4. Step 4: Simplify right side
    291,650.88x = 63,396,308,525.91
  5. Step 5: Solve for x
    x = 63,396,308,525.91/291,650.88
  6. Step 6: Final answer
    x = 217,370.54

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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.