Home / 283,141.04-390,734.48-155,815.92

Finding the Fourth Proportional to 283,141.04, 390,734.48 and 155,815.92

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Solution

The fourth proportional to 283,141.04, 390,734.48 and 155,815.92 is: 215,025.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,141.04 : 390,734.48 = 155,815.92 : x
  2. Step 2: Convert to fraction form
    283,141.04/390,734.48 = 155,815.92/x
  3. Step 3: Cross multiply
    283,141.04x = 390,734.48 × 155,815.92
  4. Step 4: Simplify right side
    283,141.04x = 60,882,652,866.46
  5. Step 5: Solve for x
    x = 60,882,652,866.46/283,141.04
  6. Step 6: Final answer
    x = 215,025.89

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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.