Home / 370,721.30-556,049.55-121,403.30

Finding the Fourth Proportional to 370,721.30, 556,049.55 and 121,403.30

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Solution

The fourth proportional to 370,721.30, 556,049.55 and 121,403.30 is: 182,094.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,721.30 : 556,049.55 = 121,403.30 : x
  2. Step 2: Convert to fraction form
    370,721.30/556,049.55 = 121,403.30/x
  3. Step 3: Cross multiply
    370,721.30x = 556,049.55 × 121,403.30
  4. Step 4: Simplify right side
    370,721.30x = 67,506,250,333.52
  5. Step 5: Solve for x
    x = 67,506,250,333.52/370,721.30
  6. Step 6: Final answer
    x = 182,094.34

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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.