Home / 279,815.20-386,133.72-152,488.04

Finding the Fourth Proportional to 279,815.20, 386,133.72 and 152,488.04

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Solution

The fourth proportional to 279,815.20, 386,133.72 and 152,488.04 is: 210,427.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,815.20 : 386,133.72 = 152,488.04 : x
  2. Step 2: Convert to fraction form
    279,815.20/386,133.72 = 152,488.04/x
  3. Step 3: Cross multiply
    279,815.20x = 386,133.72 × 152,488.04
  4. Step 4: Simplify right side
    279,815.20x = 58,880,774,140.71
  5. Step 5: Solve for x
    x = 58,880,774,140.71/279,815.20
  6. Step 6: Final answer
    x = 210,427.36

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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.