Home / 280,502.09-387,041.59-165,799.41

Finding the Fourth Proportional to 280,502.09, 387,041.59 and 165,799.41

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Solution

The fourth proportional to 280,502.09, 387,041.59 and 165,799.41 is: 228,772.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,502.09 : 387,041.59 = 165,799.41 : x
  2. Step 2: Convert to fraction form
    280,502.09/387,041.59 = 165,799.41/x
  3. Step 3: Cross multiply
    280,502.09x = 387,041.59 × 165,799.41
  4. Step 4: Simplify right side
    280,502.09x = 64,171,266,023.31
  5. Step 5: Solve for x
    x = 64,171,266,023.31/280,502.09
  6. Step 6: Final answer
    x = 228,772.86

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1.5x scale

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.