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Finding the Fourth Proportional to 304,292.70, 456,439.05 and 135,812.70

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Solution

The fourth proportional to 304,292.70, 456,439.05 and 135,812.70 is: 203,719.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,292.70 : 456,439.05 = 135,812.70 : x
  2. Step 2: Convert to fraction form
    304,292.70/456,439.05 = 135,812.70/x
  3. Step 3: Cross multiply
    304,292.70x = 456,439.05 × 135,812.70
  4. Step 4: Simplify right side
    304,292.70x = 61,990,219,765.94
  5. Step 5: Solve for x
    x = 61,990,219,765.94/304,292.70
  6. Step 6: Final answer
    x = 203,719.05

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Similar ratio
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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.