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Finding the Fourth Proportional to 268,458.48, 402,998.80 and 144,042.48

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Solution

The fourth proportional to 268,458.48, 402,998.80 and 144,042.48 is: 216,230.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,458.48 : 402,998.80 = 144,042.48 : x
  2. Step 2: Convert to fraction form
    268,458.48/402,998.80 = 144,042.48/x
  3. Step 3: Cross multiply
    268,458.48x = 402,998.80 × 144,042.48
  4. Step 4: Simplify right side
    268,458.48x = 58,048,946,589.02
  5. Step 5: Solve for x
    x = 58,048,946,589.02/268,458.48
  6. Step 6: Final answer
    x = 216,230.63

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1.5x scale

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.