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Finding the Fourth Proportional to 400,776.66, 553,162.77 and 249,844.50

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Solution

The fourth proportional to 400,776.66, 553,162.77 and 249,844.50 is: 344,842.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,776.66 : 553,162.77 = 249,844.50 : x
  2. Step 2: Convert to fraction form
    400,776.66/553,162.77 = 249,844.50/x
  3. Step 3: Cross multiply
    400,776.66x = 553,162.77 × 249,844.50
  4. Step 4: Simplify right side
    400,776.66x = 138,204,675,689.27
  5. Step 5: Solve for x
    x = 138,204,675,689.27/400,776.66
  6. Step 6: Final answer
    x = 344,842.13

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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.