Home / 282,601.31-389,985.30-155,274.17

Finding the Fourth Proportional to 282,601.31, 389,985.30 and 155,274.17

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Solution

The fourth proportional to 282,601.31, 389,985.30 and 155,274.17 is: 214,275.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,601.31 : 389,985.30 = 155,274.17 : x
  2. Step 2: Convert to fraction form
    282,601.31/389,985.30 = 155,274.17/x
  3. Step 3: Cross multiply
    282,601.31x = 389,985.30 × 155,274.17
  4. Step 4: Simplify right side
    282,601.31x = 60,554,641,819.77
  5. Step 5: Solve for x
    x = 60,554,641,819.77/282,601.31
  6. Step 6: Final answer
    x = 214,275.87

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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.