Home / 279,742.02-386,043.97-152,417.61

Finding the Fourth Proportional to 279,742.02, 386,043.97 and 152,417.61

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Solution

The fourth proportional to 279,742.02, 386,043.97 and 152,417.61 is: 210,336.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,742.02 : 386,043.97 = 152,417.61 : x
  2. Step 2: Convert to fraction form
    279,742.02/386,043.97 = 152,417.61/x
  3. Step 3: Cross multiply
    279,742.02x = 386,043.97 × 152,417.61
  4. Step 4: Simplify right side
    279,742.02x = 58,839,899,262.31
  5. Step 5: Solve for x
    x = 58,839,899,262.31/279,742.02
  6. Step 6: Final answer
    x = 210,336.29

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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.