Home / 330,675.48-456,335.01-187,408.76

Finding the Fourth Proportional to 330,675.48, 456,335.01 and 187,408.76

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Solution

The fourth proportional to 330,675.48, 456,335.01 and 187,408.76 is: 258,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,675.48 : 456,335.01 = 187,408.76 : x
  2. Step 2: Convert to fraction form
    330,675.48/456,335.01 = 187,408.76/x
  3. Step 3: Cross multiply
    330,675.48x = 456,335.01 × 187,408.76
  4. Step 4: Simplify right side
    330,675.48x = 85,521,176,087.01
  5. Step 5: Solve for x
    x = 85,521,176,087.01/330,675.48
  6. Step 6: Final answer
    x = 258,625.70

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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.