Home / 284,754.25-392,969.07-157,438.06

Finding the Fourth Proportional to 284,754.25, 392,969.07 and 157,438.06

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Solution

The fourth proportional to 284,754.25, 392,969.07 and 157,438.06 is: 217,269.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,754.25 : 392,969.07 = 157,438.06 : x
  2. Step 2: Convert to fraction form
    284,754.25/392,969.07 = 157,438.06/x
  3. Step 3: Cross multiply
    284,754.25x = 392,969.07 × 157,438.06
  4. Step 4: Simplify right side
    284,754.25x = 61,868,288,020.80
  5. Step 5: Solve for x
    x = 61,868,288,020.80/284,754.25
  6. Step 6: Final answer
    x = 217,269.06

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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.