Home / 287,928.24-397,338.40-158,867.92

Finding the Fourth Proportional to 287,928.24, 397,338.40 and 158,867.92

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Solution

The fourth proportional to 287,928.24, 397,338.40 and 158,867.92 is: 219,236.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,928.24 : 397,338.40 = 158,867.92 : x
  2. Step 2: Convert to fraction form
    287,928.24/397,338.40 = 158,867.92/x
  3. Step 3: Cross multiply
    287,928.24x = 397,338.40 × 158,867.92
  4. Step 4: Simplify right side
    287,928.24x = 63,124,325,144.13
  5. Step 5: Solve for x
    x = 63,124,325,144.13/287,928.24
  6. Step 6: Final answer
    x = 219,236.31

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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.