Home / 279,720.90-386,011.24-152,396.60

Finding the Fourth Proportional to 279,720.90, 386,011.24 and 152,396.60

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Solution

The fourth proportional to 279,720.90, 386,011.24 and 152,396.60 is: 210,305.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,720.90 : 386,011.24 = 152,396.60 : x
  2. Step 2: Convert to fraction form
    279,720.90/386,011.24 = 152,396.60/x
  3. Step 3: Cross multiply
    279,720.90x = 386,011.24 × 152,396.60
  4. Step 4: Simplify right side
    279,720.90x = 58,826,798,226.74
  5. Step 5: Solve for x
    x = 58,826,798,226.74/279,720.90
  6. Step 6: Final answer
    x = 210,305.34

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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.