Home / 330,385.92-455,931.36-187,131.84

Finding the Fourth Proportional to 330,385.92, 455,931.36 and 187,131.84

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Solution

The fourth proportional to 330,385.92, 455,931.36 and 187,131.84 is: 258,241.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,385.92 : 455,931.36 = 187,131.84 : x
  2. Step 2: Convert to fraction form
    330,385.92/455,931.36 = 187,131.84/x
  3. Step 3: Cross multiply
    330,385.92x = 455,931.36 × 187,131.84
  4. Step 4: Simplify right side
    330,385.92x = 85,319,274,310.50
  5. Step 5: Solve for x
    x = 85,319,274,310.50/330,385.92
  6. Step 6: Final answer
    x = 258,241.25

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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.