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Finding the Fourth Proportional to 173,616.30, 260,510.85 and 68,438.70

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Solution

The fourth proportional to 173,616.30, 260,510.85 and 68,438.70 is: 102,692.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,616.30 : 260,510.85 = 68,438.70 : x
  2. Step 2: Convert to fraction form
    173,616.30/260,510.85 = 68,438.70/x
  3. Step 3: Cross multiply
    173,616.30x = 260,510.85 × 68,438.70
  4. Step 4: Simplify right side
    173,616.30x = 17,829,023,909.90
  5. Step 5: Solve for x
    x = 17,829,023,909.90/173,616.30
  6. Step 6: Final answer
    x = 102,692.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.