Home / 666,168.05-999,108.90-210,795.36

Finding the Fourth Proportional to 666,168.05, 999,108.90 and 210,795.36

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Solution

The fourth proportional to 666,168.05, 999,108.90 and 210,795.36 is: 316,147.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,168.05 : 999,108.90 = 210,795.36 : x
  2. Step 2: Convert to fraction form
    666,168.05/999,108.90 = 210,795.36/x
  3. Step 3: Cross multiply
    666,168.05x = 999,108.90 × 210,795.36
  4. Step 4: Simplify right side
    666,168.05x = 210,607,520,254.70
  5. Step 5: Solve for x
    x = 210,607,520,254.70/666,168.05
  6. Step 6: Final answer
    x = 316,147.74

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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.