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Finding the Fourth Proportional to 253,385.76, 349,681.68 and 163,961.76

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Solution

The fourth proportional to 253,385.76, 349,681.68 and 163,961.76 is: 226,273.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,385.76 : 349,681.68 = 163,961.76 : x
  2. Step 2: Convert to fraction form
    253,385.76/349,681.68 = 163,961.76/x
  3. Step 3: Cross multiply
    253,385.76x = 349,681.68 × 163,961.76
  4. Step 4: Simplify right side
    253,385.76x = 57,334,423,692.56
  5. Step 5: Solve for x
    x = 57,334,423,692.56/253,385.76
  6. Step 6: Final answer
    x = 226,273.27

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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.