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Finding the Fourth Proportional to 305,234.70, 457,528.05 and 147,360.30

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Solution

The fourth proportional to 305,234.70, 457,528.05 and 147,360.30 is: 220,884.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,234.70 : 457,528.05 = 147,360.30 : x
  2. Step 2: Convert to fraction form
    305,234.70/457,528.05 = 147,360.30/x
  3. Step 3: Cross multiply
    305,234.70x = 457,528.05 × 147,360.30
  4. Step 4: Simplify right side
    305,234.70x = 67,421,470,706.42
  5. Step 5: Solve for x
    x = 67,421,470,706.42/305,234.70
  6. Step 6: Final answer
    x = 220,884.03

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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.