Home / 373,446.18-515,267.10-212,288.49

Finding the Fourth Proportional to 373,446.18, 515,267.10 and 212,288.49

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Solution

The fourth proportional to 373,446.18, 515,267.10 and 212,288.49 is: 292,907.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,446.18 : 515,267.10 = 212,288.49 : x
  2. Step 2: Convert to fraction form
    373,446.18/515,267.10 = 212,288.49/x
  3. Step 3: Cross multiply
    373,446.18x = 515,267.10 × 212,288.49
  4. Step 4: Simplify right side
    373,446.18x = 109,385,274,605.68
  5. Step 5: Solve for x
    x = 109,385,274,605.68/373,446.18
  6. Step 6: Final answer
    x = 292,907.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.