Home / 280,244.20-386,729.70-152,921.32

Finding the Fourth Proportional to 280,244.20, 386,729.70 and 152,921.32

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Solution

The fourth proportional to 280,244.20, 386,729.70 and 152,921.32 is: 211,027.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,244.20 : 386,729.70 = 152,921.32 : x
  2. Step 2: Convert to fraction form
    280,244.20/386,729.70 = 152,921.32/x
  3. Step 3: Cross multiply
    280,244.20x = 386,729.70 × 152,921.32
  4. Step 4: Simplify right side
    280,244.20x = 59,139,216,207.20
  5. Step 5: Solve for x
    x = 59,139,216,207.20/280,244.20
  6. Step 6: Final answer
    x = 211,027.44

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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.