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Finding the Fourth Proportional to 666,165.66, 999,239.20 and 160,722.39

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Solution

The fourth proportional to 666,165.66, 999,239.20 and 160,722.39 is: 241,081.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,165.66 : 999,239.20 = 160,722.39 : x
  2. Step 2: Convert to fraction form
    666,165.66/999,239.20 = 160,722.39/x
  3. Step 3: Cross multiply
    666,165.66x = 999,239.20 × 160,722.39
  4. Step 4: Simplify right side
    666,165.66x = 160,600,112,405.69
  5. Step 5: Solve for x
    x = 160,600,112,405.69/666,165.66
  6. Step 6: Final answer
    x = 241,081.35

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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.