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Finding the Fourth Proportional to 506,095.62, 759,354.27 and 221,990.20

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Solution

The fourth proportional to 506,095.62, 759,354.27 and 221,990.20 is: 333,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,095.62 : 759,354.27 = 221,990.20 : x
  2. Step 2: Convert to fraction form
    506,095.62/759,354.27 = 221,990.20/x
  3. Step 3: Cross multiply
    506,095.62x = 759,354.27 × 221,990.20
  4. Step 4: Simplify right side
    506,095.62x = 168,569,204,369.77
  5. Step 5: Solve for x
    x = 168,569,204,369.77/506,095.62
  6. Step 6: Final answer
    x = 333,077.78

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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.