Home / 245,891.10-368,836.65-121,215.90

Finding the Fourth Proportional to 245,891.10, 368,836.65 and 121,215.90

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Solution

The fourth proportional to 245,891.10, 368,836.65 and 121,215.90 is: 181,823.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,891.10 : 368,836.65 = 121,215.90 : x
  2. Step 2: Convert to fraction form
    245,891.10/368,836.65 = 121,215.90/x
  3. Step 3: Cross multiply
    245,891.10x = 368,836.65 × 121,215.90
  4. Step 4: Simplify right side
    245,891.10x = 44,708,866,482.74
  5. Step 5: Solve for x
    x = 44,708,866,482.74/245,891.10
  6. Step 6: Final answer
    x = 181,823.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.