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Finding the Fourth Proportional to 306,095.70, 459,143.55 and 260,824.80

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Solution

The fourth proportional to 306,095.70, 459,143.55 and 260,824.80 is: 391,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,095.70 : 459,143.55 = 260,824.80 : x
  2. Step 2: Convert to fraction form
    306,095.70/459,143.55 = 260,824.80/x
  3. Step 3: Cross multiply
    306,095.70x = 459,143.55 × 260,824.80
  4. Step 4: Simplify right side
    306,095.70x = 119,756,024,600.04
  5. Step 5: Solve for x
    x = 119,756,024,600.04/306,095.70
  6. Step 6: Final answer
    x = 391,237.20

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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.