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Finding the Fourth Proportional to 306,095.60, 459,143.40 and 221,677.40

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Solution

The fourth proportional to 306,095.60, 459,143.40 and 221,677.40 is: 332,516.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,095.60 : 459,143.40 = 221,677.40 : x
  2. Step 2: Convert to fraction form
    306,095.60/459,143.40 = 221,677.40/x
  3. Step 3: Cross multiply
    306,095.60x = 459,143.40 × 221,677.40
  4. Step 4: Simplify right side
    306,095.60x = 101,781,715,139.16
  5. Step 5: Solve for x
    x = 101,781,715,139.16/306,095.60
  6. Step 6: Final answer
    x = 332,516.10

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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.