Home / 211,112.57-291,356.15-120,482.18

Finding the Fourth Proportional to 211,112.57, 291,356.15 and 120,482.18

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Solution

The fourth proportional to 211,112.57, 291,356.15 and 120,482.18 is: 166,277.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,112.57 : 291,356.15 = 120,482.18 : x
  2. Step 2: Convert to fraction form
    211,112.57/291,356.15 = 120,482.18/x
  3. Step 3: Cross multiply
    211,112.57x = 291,356.15 × 120,482.18
  4. Step 4: Simplify right side
    211,112.57x = 35,103,223,888.66
  5. Step 5: Solve for x
    x = 35,103,223,888.66/211,112.57
  6. Step 6: Final answer
    x = 166,277.28

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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.