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Finding the Fourth Proportional to 400,315.98, 552,431.10 and 219,025.29

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Solution

The fourth proportional to 400,315.98, 552,431.10 and 219,025.29 is: 302,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,315.98 : 552,431.10 = 219,025.29 : x
  2. Step 2: Convert to fraction form
    400,315.98/552,431.10 = 219,025.29/x
  3. Step 3: Cross multiply
    400,315.98x = 552,431.10 × 219,025.29
  4. Step 4: Simplify right side
    400,315.98x = 120,996,381,882.52
  5. Step 5: Solve for x
    x = 120,996,381,882.52/400,315.98
  6. Step 6: Final answer
    x = 302,252.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.