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Finding the Fourth Proportional to 253,148.28, 349,265.70 and 168,279.72

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Solution

The fourth proportional to 253,148.28, 349,265.70 and 168,279.72 is: 232,173.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,148.28 : 349,265.70 = 168,279.72 : x
  2. Step 2: Convert to fraction form
    253,148.28/349,265.70 = 168,279.72/x
  3. Step 3: Cross multiply
    253,148.28x = 349,265.70 × 168,279.72
  4. Step 4: Simplify right side
    253,148.28x = 58,774,334,201.60
  5. Step 5: Solve for x
    x = 58,774,334,201.60/253,148.28
  6. Step 6: Final answer
    x = 232,173.55

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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.