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Finding the Fourth Proportional to 370,290.31, 555,102.86 and 133,577.64

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Solution

The fourth proportional to 370,290.31, 555,102.86 and 133,577.64 is: 200,246.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,290.31 : 555,102.86 = 133,577.64 : x
  2. Step 2: Convert to fraction form
    370,290.31/555,102.86 = 133,577.64/x
  3. Step 3: Cross multiply
    370,290.31x = 555,102.86 × 133,577.64
  4. Step 4: Simplify right side
    370,290.31x = 74,149,329,328.16
  5. Step 5: Solve for x
    x = 74,149,329,328.16/370,290.31
  6. Step 6: Final answer
    x = 200,246.48

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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.