Home / 284,586.18-392,729.06-157,261.78

Finding the Fourth Proportional to 284,586.18, 392,729.06 and 157,261.78

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Solution

The fourth proportional to 284,586.18, 392,729.06 and 157,261.78 is: 217,021.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,586.18 : 392,729.06 = 157,261.78 : x
  2. Step 2: Convert to fraction form
    284,586.18/392,729.06 = 157,261.78/x
  3. Step 3: Cross multiply
    284,586.18x = 392,729.06 × 157,261.78
  4. Step 4: Simplify right side
    284,586.18x = 61,761,271,033.33
  5. Step 5: Solve for x
    x = 61,761,271,033.33/284,586.18
  6. Step 6: Final answer
    x = 217,021.33

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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.