Home / 302,677.20-453,691.80-102,812.40

Finding the Fourth Proportional to 302,677.20, 453,691.80 and 102,812.40

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Solution

The fourth proportional to 302,677.20, 453,691.80 and 102,812.40 is: 154,108.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,677.20 : 453,691.80 = 102,812.40 : x
  2. Step 2: Convert to fraction form
    302,677.20/453,691.80 = 102,812.40/x
  3. Step 3: Cross multiply
    302,677.20x = 453,691.80 × 102,812.40
  4. Step 4: Simplify right side
    302,677.20x = 46,645,142,818.32
  5. Step 5: Solve for x
    x = 46,645,142,818.32/302,677.20
  6. Step 6: Final answer
    x = 154,108.54

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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.