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Finding the Fourth Proportional to 551,017.50, 826,526.28 and 218,593.50

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Solution

The fourth proportional to 551,017.50, 826,526.28 and 218,593.50 is: 327,890.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,017.50 : 826,526.28 = 218,593.50 : x
  2. Step 2: Convert to fraction form
    551,017.50/826,526.28 = 218,593.50/x
  3. Step 3: Cross multiply
    551,017.50x = 826,526.28 × 218,593.50
  4. Step 4: Simplify right side
    551,017.50x = 180,673,272,387.18
  5. Step 5: Solve for x
    x = 180,673,272,387.18/551,017.50
  6. Step 6: Final answer
    x = 327,890.26

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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.