Home / 282,799.28-390,252.96-155,474

Finding the Fourth Proportional to 282,799.28, 390,252.96 and 155,474

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Solution

The fourth proportional to 282,799.28, 390,252.96 and 155,474 is: 214,548.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,799.28 : 390,252.96 = 155,474 : x
  2. Step 2: Convert to fraction form
    282,799.28/390,252.96 = 155,474/x
  3. Step 3: Cross multiply
    282,799.28x = 390,252.96 × 155,474
  4. Step 4: Simplify right side
    282,799.28x = 60,674,188,703.04
  5. Step 5: Solve for x
    x = 60,674,188,703.04/282,799.28
  6. Step 6: Final answer
    x = 214,548.60

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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.