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Finding the Fourth Proportional to 303,011.40, 454,517.10 and 219,030.60

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Solution

The fourth proportional to 303,011.40, 454,517.10 and 219,030.60 is: 328,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,011.40 : 454,517.10 = 219,030.60 : x
  2. Step 2: Convert to fraction form
    303,011.40/454,517.10 = 219,030.60/x
  3. Step 3: Cross multiply
    303,011.40x = 454,517.10 × 219,030.60
  4. Step 4: Simplify right side
    303,011.40x = 99,553,153,123.26
  5. Step 5: Solve for x
    x = 99,553,153,123.26/303,011.40
  6. Step 6: Final answer
    x = 328,545.90

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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.