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Finding the Fourth Proportional to 291,675.44, 402,512.38 and 157,539.44

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Solution

The fourth proportional to 291,675.44, 402,512.38 and 157,539.44 is: 217,404.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,675.44 : 402,512.38 = 157,539.44 : x
  2. Step 2: Convert to fraction form
    291,675.44/402,512.38 = 157,539.44/x
  3. Step 3: Cross multiply
    291,675.44x = 402,512.38 × 157,539.44
  4. Step 4: Simplify right side
    291,675.44x = 63,411,573,144.29
  5. Step 5: Solve for x
    x = 63,411,573,144.29/291,675.44
  6. Step 6: Final answer
    x = 217,404.57

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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.