Home / 302,905.80-454,380.30-92,543.40

Finding the Fourth Proportional to 302,905.80, 454,380.30 and 92,543.40

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Solution

The fourth proportional to 302,905.80, 454,380.30 and 92,543.40 is: 138,821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,905.80 : 454,380.30 = 92,543.40 : x
  2. Step 2: Convert to fraction form
    302,905.80/454,380.30 = 92,543.40/x
  3. Step 3: Cross multiply
    302,905.80x = 454,380.30 × 92,543.40
  4. Step 4: Simplify right side
    302,905.80x = 42,049,897,855.02
  5. Step 5: Solve for x
    x = 42,049,897,855.02/302,905.80
  6. Step 6: Final answer
    x = 138,821.70

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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.