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Finding the Fourth Proportional to 370,175.60, 555,004.20 and 145,449.20

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Solution

The fourth proportional to 370,175.60, 555,004.20 and 145,449.20 is: 218,071.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,175.60 : 555,004.20 = 145,449.20 : x
  2. Step 2: Convert to fraction form
    370,175.60/555,004.20 = 145,449.20/x
  3. Step 3: Cross multiply
    370,175.60x = 555,004.20 × 145,449.20
  4. Step 4: Simplify right side
    370,175.60x = 80,724,916,886.64
  5. Step 5: Solve for x
    x = 80,724,916,886.64/370,175.60
  6. Step 6: Final answer
    x = 218,071.96

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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.