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Finding the Fourth Proportional to 552,210.20, 828,752.70 and 215,412.20

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Solution

The fourth proportional to 552,210.20, 828,752.70 and 215,412.20 is: 323,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,210.20 : 828,752.70 = 215,412.20 : x
  2. Step 2: Convert to fraction form
    552,210.20/828,752.70 = 215,412.20/x
  3. Step 3: Cross multiply
    552,210.20x = 828,752.70 × 215,412.20
  4. Step 4: Simplify right side
    552,210.20x = 178,523,442,362.94
  5. Step 5: Solve for x
    x = 178,523,442,362.94/552,210.20
  6. Step 6: Final answer
    x = 323,288.93

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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.