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Finding the Fourth Proportional to 303,428.60, 454,778.40 and 125,844.20

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Solution

The fourth proportional to 303,428.60, 454,778.40 and 125,844.20 is: 188,615.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,428.60 : 454,778.40 = 125,844.20 : x
  2. Step 2: Convert to fraction form
    303,428.60/454,778.40 = 125,844.20/x
  3. Step 3: Cross multiply
    303,428.60x = 454,778.40 × 125,844.20
  4. Step 4: Simplify right side
    303,428.60x = 57,231,223,925.28
  5. Step 5: Solve for x
    x = 57,231,223,925.28/303,428.60
  6. Step 6: Final answer
    x = 188,615.13

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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.