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Finding the Fourth Proportional to 291,774.04, 402,648.24 and 157,638.04

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Solution

The fourth proportional to 291,774.04, 402,648.24 and 157,638.04 is: 217,540.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,774.04 : 402,648.24 = 157,638.04 : x
  2. Step 2: Convert to fraction form
    291,774.04/402,648.24 = 157,638.04/x
  3. Step 3: Cross multiply
    291,774.04x = 402,648.24 × 157,638.04
  4. Step 4: Simplify right side
    291,774.04x = 63,472,679,363.05
  5. Step 5: Solve for x
    x = 63,472,679,363.05/291,774.04
  6. Step 6: Final answer
    x = 217,540.53

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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.