Home / 211,114.32-291,338.28-115,627.20

Finding the Fourth Proportional to 211,114.32, 291,338.28 and 115,627.20

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Solution

The fourth proportional to 211,114.32, 291,338.28 and 115,627.20 is: 159,565.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,114.32 : 291,338.28 = 115,627.20 : x
  2. Step 2: Convert to fraction form
    211,114.32/291,338.28 = 115,627.20/x
  3. Step 3: Cross multiply
    211,114.32x = 291,338.28 × 115,627.20
  4. Step 4: Simplify right side
    211,114.32x = 33,686,629,569.22
  5. Step 5: Solve for x
    x = 33,686,629,569.22/211,114.32
  6. Step 6: Final answer
    x = 159,565.82

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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.