Home / 287,118.72-396,220.62-158,054.44

Finding the Fourth Proportional to 287,118.72, 396,220.62 and 158,054.44

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Solution

The fourth proportional to 287,118.72, 396,220.62 and 158,054.44 is: 218,113.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,118.72 : 396,220.62 = 158,054.44 : x
  2. Step 2: Convert to fraction form
    287,118.72/396,220.62 = 158,054.44/x
  3. Step 3: Cross multiply
    287,118.72x = 396,220.62 × 158,054.44
  4. Step 4: Simplify right side
    287,118.72x = 62,624,426,429.73
  5. Step 5: Solve for x
    x = 62,624,426,429.73/287,118.72
  6. Step 6: Final answer
    x = 218,113.35

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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.