Home / 280,360.21-386,839.02-165,580.66

Finding the Fourth Proportional to 280,360.21, 386,839.02 and 165,580.66

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Solution

The fourth proportional to 280,360.21, 386,839.02 and 165,580.66 is: 228,467.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,360.21 : 386,839.02 = 165,580.66 : x
  2. Step 2: Convert to fraction form
    280,360.21/386,839.02 = 165,580.66/x
  3. Step 3: Cross multiply
    280,360.21x = 386,839.02 × 165,580.66
  4. Step 4: Simplify right side
    280,360.21x = 64,053,057,776.77
  5. Step 5: Solve for x
    x = 64,053,057,776.77/280,360.21
  6. Step 6: Final answer
    x = 228,467.00

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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.