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Finding the Fourth Proportional to 202,017.58, 278,786.16 and 111,376.72

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Solution

The fourth proportional to 202,017.58, 278,786.16 and 111,376.72 is: 153,700.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,017.58 : 278,786.16 = 111,376.72 : x
  2. Step 2: Convert to fraction form
    202,017.58/278,786.16 = 111,376.72/x
  3. Step 3: Cross multiply
    202,017.58x = 278,786.16 × 111,376.72
  4. Step 4: Simplify right side
    202,017.58x = 31,050,288,082.20
  5. Step 5: Solve for x
    x = 31,050,288,082.20/202,017.58
  6. Step 6: Final answer
    x = 153,700.92

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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.