Home / 370,577.20-555,865.80-121,284.40

Finding the Fourth Proportional to 370,577.20, 555,865.80 and 121,284.40

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Solution

The fourth proportional to 370,577.20, 555,865.80 and 121,284.40 is: 181,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,577.20 : 555,865.80 = 121,284.40 : x
  2. Step 2: Convert to fraction form
    370,577.20/555,865.80 = 121,284.40/x
  3. Step 3: Cross multiply
    370,577.20x = 555,865.80 × 121,284.40
  4. Step 4: Simplify right side
    370,577.20x = 67,417,850,033.52
  5. Step 5: Solve for x
    x = 67,417,850,033.52/370,577.20
  6. Step 6: Final answer
    x = 181,926.60

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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.