Home / 287,297.05-396,466.20-158,233.07

Finding the Fourth Proportional to 287,297.05, 396,466.20 and 158,233.07

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Solution

The fourth proportional to 287,297.05, 396,466.20 and 158,233.07 is: 218,359.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,297.05 : 396,466.20 = 158,233.07 : x
  2. Step 2: Convert to fraction form
    287,297.05/396,466.20 = 158,233.07/x
  3. Step 3: Cross multiply
    287,297.05x = 396,466.20 × 158,233.07
  4. Step 4: Simplify right side
    287,297.05x = 62,734,061,994.90
  5. Step 5: Solve for x
    x = 62,734,061,994.90/287,297.05
  6. Step 6: Final answer
    x = 218,359.58

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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.