Home / 280,584.10-387,110.01-159,695.11

Finding the Fourth Proportional to 280,584.10, 387,110.01 and 159,695.11

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Solution

The fourth proportional to 280,584.10, 387,110.01 and 159,695.11 is: 220,324.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,584.10 : 387,110.01 = 159,695.11 : x
  2. Step 2: Convert to fraction form
    280,584.10/387,110.01 = 159,695.11/x
  3. Step 3: Cross multiply
    280,584.10x = 387,110.01 × 159,695.11
  4. Step 4: Simplify right side
    280,584.10x = 61,819,575,629.05
  5. Step 5: Solve for x
    x = 61,819,575,629.05/280,584.10
  6. Step 6: Final answer
    x = 220,324.59

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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.