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Finding the Fourth Proportional to 305,237.70, 457,532.55 and 147,363.30

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Solution

The fourth proportional to 305,237.70, 457,532.55 and 147,363.30 is: 220,888.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,237.70 : 457,532.55 = 147,363.30 : x
  2. Step 2: Convert to fraction form
    305,237.70/457,532.55 = 147,363.30/x
  3. Step 3: Cross multiply
    305,237.70x = 457,532.55 × 147,363.30
  4. Step 4: Simplify right side
    305,237.70x = 67,423,506,425.42
  5. Step 5: Solve for x
    x = 67,423,506,425.42/305,237.70
  6. Step 6: Final answer
    x = 220,888.53

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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.