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Finding the Fourth Proportional to 306,035.70, 459,053.55 and 260,764.80

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Solution

The fourth proportional to 306,035.70, 459,053.55 and 260,764.80 is: 391,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,035.70 : 459,053.55 = 260,764.80 : x
  2. Step 2: Convert to fraction form
    306,035.70/459,053.55 = 260,764.80/x
  3. Step 3: Cross multiply
    306,035.70x = 459,053.55 × 260,764.80
  4. Step 4: Simplify right side
    306,035.70x = 119,705,007,155.04
  5. Step 5: Solve for x
    x = 119,705,007,155.04/306,035.70
  6. Step 6: Final answer
    x = 391,147.20

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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.