Home / 280,131.04-386,586.24-152,811.28

Finding the Fourth Proportional to 280,131.04, 386,586.24 and 152,811.28

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Solution

The fourth proportional to 280,131.04, 386,586.24 and 152,811.28 is: 210,882.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,131.04 : 386,586.24 = 152,811.28 : x
  2. Step 2: Convert to fraction form
    280,131.04/386,586.24 = 152,811.28/x
  3. Step 3: Cross multiply
    280,131.04x = 386,586.24 × 152,811.28
  4. Step 4: Simplify right side
    280,131.04x = 59,074,738,164.79
  5. Step 5: Solve for x
    x = 59,074,738,164.79/280,131.04
  6. Step 6: Final answer
    x = 210,882.51

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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.