Home / 213,545.20-319,734.60-154,058.80

Finding the Fourth Proportional to 213,545.20, 319,734.60 and 154,058.80

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Solution

The fourth proportional to 213,545.20, 319,734.60 and 154,058.80 is: 230,667.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,545.20 : 319,734.60 = 154,058.80 : x
  2. Step 2: Convert to fraction form
    213,545.20/319,734.60 = 154,058.80/x
  3. Step 3: Cross multiply
    213,545.20x = 319,734.60 × 154,058.80
  4. Step 4: Simplify right side
    213,545.20x = 49,257,928,794.48
  5. Step 5: Solve for x
    x = 49,257,928,794.48/213,545.20
  6. Step 6: Final answer
    x = 230,667.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.