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Finding the Fourth Proportional to 400,253.67, 552,345.53 and 218,963.52

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Solution

The fourth proportional to 400,253.67, 552,345.53 and 218,963.52 is: 302,167.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,253.67 : 552,345.53 = 218,963.52 : x
  2. Step 2: Convert to fraction form
    400,253.67/552,345.53 = 218,963.52/x
  3. Step 3: Cross multiply
    400,253.67x = 552,345.53 × 218,963.52
  4. Step 4: Simplify right side
    400,253.67x = 120,943,520,410.25
  5. Step 5: Solve for x
    x = 120,943,520,410.25/400,253.67
  6. Step 6: Final answer
    x = 302,167.17

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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.