Home / 373,277.18-515,100.30-212,109.86

Finding the Fourth Proportional to 373,277.18, 515,100.30 and 212,109.86

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Solution

The fourth proportional to 373,277.18, 515,100.30 and 212,109.86 is: 292,698.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,277.18 : 515,100.30 = 212,109.86 : x
  2. Step 2: Convert to fraction form
    373,277.18/515,100.30 = 212,109.86/x
  3. Step 3: Cross multiply
    373,277.18x = 515,100.30 × 212,109.86
  4. Step 4: Simplify right side
    373,277.18x = 109,257,849,943.46
  5. Step 5: Solve for x
    x = 109,257,849,943.46/373,277.18
  6. Step 6: Final answer
    x = 292,698.98

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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.