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Finding the Fourth Proportional to 666,287.76, 999,432.04 and 167,651.76

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Solution

The fourth proportional to 666,287.76, 999,432.04 and 167,651.76 is: 251,477.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,287.76 : 999,432.04 = 167,651.76 : x
  2. Step 2: Convert to fraction form
    666,287.76/999,432.04 = 167,651.76/x
  3. Step 3: Cross multiply
    666,287.76x = 999,432.04 × 167,651.76
  4. Step 4: Simplify right side
    666,287.76x = 167,556,540,506.39
  5. Step 5: Solve for x
    x = 167,556,540,506.39/666,287.76
  6. Step 6: Final answer
    x = 251,477.74

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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.