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Finding the Fourth Proportional to 229,990.95, 345,001.05 and 72,225.63

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Solution

The fourth proportional to 229,990.95, 345,001.05 and 72,225.63 is: 108,343.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,990.95 : 345,001.05 = 72,225.63 : x
  2. Step 2: Convert to fraction form
    229,990.95/345,001.05 = 72,225.63/x
  3. Step 3: Cross multiply
    229,990.95x = 345,001.05 × 72,225.63
  4. Step 4: Simplify right side
    229,990.95x = 24,917,918,186.91
  5. Step 5: Solve for x
    x = 24,917,918,186.91/229,990.95
  6. Step 6: Final answer
    x = 108,343.04

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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.