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Finding the Fourth Proportional to 249,877, 374,854.47 and 81,357.54

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Solution

The fourth proportional to 249,877, 374,854.47 and 81,357.54 is: 122,049.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,877 : 374,854.47 = 81,357.54 : x
  2. Step 2: Convert to fraction form
    249,877/374,854.47 = 81,357.54/x
  3. Step 3: Cross multiply
    249,877x = 374,854.47 × 81,357.54
  4. Step 4: Simplify right side
    249,877x = 30,497,237,537.20
  5. Step 5: Solve for x
    x = 30,497,237,537.20/249,877
  6. Step 6: Final answer
    x = 122,049.00

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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.