Home / 280,211.44-386,693.04-152,889.70

Finding the Fourth Proportional to 280,211.44, 386,693.04 and 152,889.70

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Solution

The fourth proportional to 280,211.44, 386,693.04 and 152,889.70 is: 210,988.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,211.44 : 386,693.04 = 152,889.70 : x
  2. Step 2: Convert to fraction form
    280,211.44/386,693.04 = 152,889.70/x
  3. Step 3: Cross multiply
    280,211.44x = 386,693.04 × 152,889.70
  4. Step 4: Simplify right side
    280,211.44x = 59,121,382,877.69
  5. Step 5: Solve for x
    x = 59,121,382,877.69/280,211.44
  6. Step 6: Final answer
    x = 210,988.47

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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.