Home / 370,577.20-556,011.60-145,899.40

Finding the Fourth Proportional to 370,577.20, 556,011.60 and 145,899.40

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Solution

The fourth proportional to 370,577.20, 556,011.60 and 145,899.40 is: 218,906.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,577.20 : 556,011.60 = 145,899.40 : x
  2. Step 2: Convert to fraction form
    370,577.20/556,011.60 = 145,899.40/x
  3. Step 3: Cross multiply
    370,577.20x = 556,011.60 × 145,899.40
  4. Step 4: Simplify right side
    370,577.20x = 81,121,758,833.04
  5. Step 5: Solve for x
    x = 81,121,758,833.04/370,577.20
  6. Step 6: Final answer
    x = 218,906.50

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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.