Home / 281,549.94-388,545.19-160,688.80

Finding the Fourth Proportional to 281,549.94, 388,545.19 and 160,688.80

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Solution

The fourth proportional to 281,549.94, 388,545.19 and 160,688.80 is: 221,754.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,549.94 : 388,545.19 = 160,688.80 : x
  2. Step 2: Convert to fraction form
    281,549.94/388,545.19 = 160,688.80/x
  3. Step 3: Cross multiply
    281,549.94x = 388,545.19 × 160,688.80
  4. Step 4: Simplify right side
    281,549.94x = 62,434,858,652.50
  5. Step 5: Solve for x
    x = 62,434,858,652.50/281,549.94
  6. Step 6: Final answer
    x = 221,754.12

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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.