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Finding the Fourth Proportional to 192,458.40, 288,140.85 and 181,985.10

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Solution

The fourth proportional to 192,458.40, 288,140.85 and 181,985.10 is: 272,460.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,458.40 : 288,140.85 = 181,985.10 : x
  2. Step 2: Convert to fraction form
    192,458.40/288,140.85 = 181,985.10/x
  3. Step 3: Cross multiply
    192,458.40x = 288,140.85 × 181,985.10
  4. Step 4: Simplify right side
    192,458.40x = 52,437,341,401.34
  5. Step 5: Solve for x
    x = 52,437,341,401.34/192,458.40
  6. Step 6: Final answer
    x = 272,460.65

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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.