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Finding the Fourth Proportional to 302,539.30, 453,808.95 and 80,923.30

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Solution

The fourth proportional to 302,539.30, 453,808.95 and 80,923.30 is: 121,384.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,539.30 : 453,808.95 = 80,923.30 : x
  2. Step 2: Convert to fraction form
    302,539.30/453,808.95 = 80,923.30/x
  3. Step 3: Cross multiply
    302,539.30x = 453,808.95 × 80,923.30
  4. Step 4: Simplify right side
    302,539.30x = 36,723,717,803.54
  5. Step 5: Solve for x
    x = 36,723,717,803.54/302,539.30
  6. Step 6: Final answer
    x = 121,384.95

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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.