Home / 282,877.30-390,366.30-155,552.59

Finding the Fourth Proportional to 282,877.30, 390,366.30 and 155,552.59

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Solution

The fourth proportional to 282,877.30, 390,366.30 and 155,552.59 is: 214,660.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,877.30 : 390,366.30 = 155,552.59 : x
  2. Step 2: Convert to fraction form
    282,877.30/390,366.30 = 155,552.59/x
  3. Step 3: Cross multiply
    282,877.30x = 390,366.30 × 155,552.59
  4. Step 4: Simplify right side
    282,877.30x = 60,722,489,013.72
  5. Step 5: Solve for x
    x = 60,722,489,013.72/282,877.30
  6. Step 6: Final answer
    x = 214,660.17

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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.