Home / 217,782.40-300,587.20-156,691.84

Finding the Fourth Proportional to 217,782.40, 300,587.20 and 156,691.84

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Solution

The fourth proportional to 217,782.40, 300,587.20 and 156,691.84 is: 216,268.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,782.40 : 300,587.20 = 156,691.84 : x
  2. Step 2: Convert to fraction form
    217,782.40/300,587.20 = 156,691.84/x
  3. Step 3: Cross multiply
    217,782.40x = 300,587.20 × 156,691.84
  4. Step 4: Simplify right side
    217,782.40x = 47,099,561,448.45
  5. Step 5: Solve for x
    x = 47,099,561,448.45/217,782.40
  6. Step 6: Final answer
    x = 216,268.91

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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.