Home / 282,828.34-390,299.61-155,502.82

Finding the Fourth Proportional to 282,828.34, 390,299.61 and 155,502.82

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Solution

The fourth proportional to 282,828.34, 390,299.61 and 155,502.82 is: 214,591.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,828.34 : 390,299.61 = 155,502.82 : x
  2. Step 2: Convert to fraction form
    282,828.34/390,299.61 = 155,502.82/x
  3. Step 3: Cross multiply
    282,828.34x = 390,299.61 × 155,502.82
  4. Step 4: Simplify right side
    282,828.34x = 60,692,689,999.90
  5. Step 5: Solve for x
    x = 60,692,689,999.90/282,828.34
  6. Step 6: Final answer
    x = 214,591.97

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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.