Home / 280,529.40-387,125.35-158,022.17

Finding the Fourth Proportional to 280,529.40, 387,125.35 and 158,022.17

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Solution

The fourth proportional to 280,529.40, 387,125.35 and 158,022.17 is: 218,067.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,529.40 : 387,125.35 = 158,022.17 : x
  2. Step 2: Convert to fraction form
    280,529.40/387,125.35 = 158,022.17/x
  3. Step 3: Cross multiply
    280,529.40x = 387,125.35 × 158,022.17
  4. Step 4: Simplify right side
    280,529.40x = 61,174,385,538.33
  5. Step 5: Solve for x
    x = 61,174,385,538.33/280,529.40
  6. Step 6: Final answer
    x = 218,067.64

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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.