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Finding the Fourth Proportional to 370,577.50, 556,610.10 and 221,109.46

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Solution

The fourth proportional to 370,577.50, 556,610.10 and 221,109.46 is: 332,108.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,577.50 : 556,610.10 = 221,109.46 : x
  2. Step 2: Convert to fraction form
    370,577.50/556,610.10 = 221,109.46/x
  3. Step 3: Cross multiply
    370,577.50x = 556,610.10 × 221,109.46
  4. Step 4: Simplify right side
    370,577.50x = 123,071,758,641.55
  5. Step 5: Solve for x
    x = 123,071,758,641.55/370,577.50
  6. Step 6: Final answer
    x = 332,108.02

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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.