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Finding the Fourth Proportional to 399,526.80, 599,517.42 and 146,774.82

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Solution

The fourth proportional to 399,526.80, 599,517.42 and 146,774.82 is: 220,245.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,526.80 : 599,517.42 = 146,774.82 : x
  2. Step 2: Convert to fraction form
    399,526.80/599,517.42 = 146,774.82/x
  3. Step 3: Cross multiply
    399,526.80x = 599,517.42 × 146,774.82
  4. Step 4: Simplify right side
    399,526.80x = 87,994,061,407.36
  5. Step 5: Solve for x
    x = 87,994,061,407.36/399,526.80
  6. Step 6: Final answer
    x = 220,245.70

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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.