Home / 207,205.28-285,944.40-122,364.20

Finding the Fourth Proportional to 207,205.28, 285,944.40 and 122,364.20

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Solution

The fourth proportional to 207,205.28, 285,944.40 and 122,364.20 is: 168,863.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,205.28 : 285,944.40 = 122,364.20 : x
  2. Step 2: Convert to fraction form
    207,205.28/285,944.40 = 122,364.20/x
  3. Step 3: Cross multiply
    207,205.28x = 285,944.40 × 122,364.20
  4. Step 4: Simplify right side
    207,205.28x = 34,989,357,750.48
  5. Step 5: Solve for x
    x = 34,989,357,750.48/207,205.28
  6. Step 6: Final answer
    x = 168,863.25

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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.