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Finding the Fourth Proportional to 253,165.70, 349,520.27 and 157,801.57

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Solution

The fourth proportional to 253,165.70, 349,520.27 and 157,801.57 is: 217,860.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,165.70 : 349,520.27 = 157,801.57 : x
  2. Step 2: Convert to fraction form
    253,165.70/349,520.27 = 157,801.57/x
  3. Step 3: Cross multiply
    253,165.70x = 349,520.27 × 157,801.57
  4. Step 4: Simplify right side
    253,165.70x = 55,154,845,690.02
  5. Step 5: Solve for x
    x = 55,154,845,690.02/253,165.70
  6. Step 6: Final answer
    x = 217,860.65

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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.