Home / 212,227.28-292,915.20-121,643.92

Finding the Fourth Proportional to 212,227.28, 292,915.20 and 121,643.92

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Solution

The fourth proportional to 212,227.28, 292,915.20 and 121,643.92 is: 167,892.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,227.28 : 292,915.20 = 121,643.92 : x
  2. Step 2: Convert to fraction form
    212,227.28/292,915.20 = 121,643.92/x
  3. Step 3: Cross multiply
    212,227.28x = 292,915.20 × 121,643.92
  4. Step 4: Simplify right side
    212,227.28x = 35,631,353,155.58
  5. Step 5: Solve for x
    x = 35,631,353,155.58/212,227.28
  6. Step 6: Final answer
    x = 167,892.43

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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.