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Finding the Fourth Proportional to 306,972.68, 460,521.48 and 129,480.32

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Solution

The fourth proportional to 306,972.68, 460,521.48 and 129,480.32 is: 194,246.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,972.68 : 460,521.48 = 129,480.32 : x
  2. Step 2: Convert to fraction form
    306,972.68/460,521.48 = 129,480.32/x
  3. Step 3: Cross multiply
    306,972.68x = 460,521.48 × 129,480.32
  4. Step 4: Simplify right side
    306,972.68x = 59,628,468,597.27
  5. Step 5: Solve for x
    x = 59,628,468,597.27/306,972.68
  6. Step 6: Final answer
    x = 194,246.83

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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.