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Finding the Fourth Proportional to 202,334.16, 279,221.20 and 111,690.20

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Solution

The fourth proportional to 202,334.16, 279,221.20 and 111,690.20 is: 154,132.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,334.16 : 279,221.20 = 111,690.20 : x
  2. Step 2: Convert to fraction form
    202,334.16/279,221.20 = 111,690.20/x
  3. Step 3: Cross multiply
    202,334.16x = 279,221.20 × 111,690.20
  4. Step 4: Simplify right side
    202,334.16x = 31,186,271,672.24
  5. Step 5: Solve for x
    x = 31,186,271,672.24/202,334.16
  6. Step 6: Final answer
    x = 154,132.51

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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.