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Finding the Fourth Proportional to 306,717.88, 460,150.64 and 129,275.64

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Solution

The fourth proportional to 306,717.88, 460,150.64 and 129,275.64 is: 193,944.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,717.88 : 460,150.64 = 129,275.64 : x
  2. Step 2: Convert to fraction form
    306,717.88/460,150.64 = 129,275.64/x
  3. Step 3: Cross multiply
    306,717.88x = 460,150.64 × 129,275.64
  4. Step 4: Simplify right side
    306,717.88x = 59,486,268,482.41
  5. Step 5: Solve for x
    x = 59,486,268,482.41/306,717.88
  6. Step 6: Final answer
    x = 193,944.57

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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.