Home / 400,854.16-553,269.78-249,922

Finding the Fourth Proportional to 400,854.16, 553,269.78 and 249,922

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Solution

The fourth proportional to 400,854.16, 553,269.78 and 249,922 is: 344,949.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,854.16 : 553,269.78 = 249,922 : x
  2. Step 2: Convert to fraction form
    400,854.16/553,269.78 = 249,922/x
  3. Step 3: Cross multiply
    400,854.16x = 553,269.78 × 249,922
  4. Step 4: Simplify right side
    400,854.16x = 138,274,289,957.16
  5. Step 5: Solve for x
    x = 138,274,289,957.16/400,854.16
  6. Step 6: Final answer
    x = 344,949.12

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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.