Home / 370,974.30-556,429.05-121,656.30

Finding the Fourth Proportional to 370,974.30, 556,429.05 and 121,656.30

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Solution

The fourth proportional to 370,974.30, 556,429.05 and 121,656.30 is: 182,473.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,974.30 : 556,429.05 = 121,656.30 : x
  2. Step 2: Convert to fraction form
    370,974.30/556,429.05 = 121,656.30/x
  3. Step 3: Cross multiply
    370,974.30x = 556,429.05 × 121,656.30
  4. Step 4: Simplify right side
    370,974.30x = 67,693,099,435.52
  5. Step 5: Solve for x
    x = 67,693,099,435.52/370,974.30
  6. Step 6: Final answer
    x = 182,473.82

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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.