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Finding the Fourth Proportional to 303,209.60, 454,854.90 and 103,479.80

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Solution

The fourth proportional to 303,209.60, 454,854.90 and 103,479.80 is: 155,233.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,209.60 : 454,854.90 = 103,479.80 : x
  2. Step 2: Convert to fraction form
    303,209.60/454,854.90 = 103,479.80/x
  3. Step 3: Cross multiply
    303,209.60x = 454,854.90 × 103,479.80
  4. Step 4: Simplify right side
    303,209.60x = 47,068,294,081.02
  5. Step 5: Solve for x
    x = 47,068,294,081.02/303,209.60
  6. Step 6: Final answer
    x = 155,233.52

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1.5x scale

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.