Home / 305,887.07-458,312.80-187,310.76

Finding the Fourth Proportional to 305,887.07, 458,312.80 and 187,310.76

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Solution

The fourth proportional to 305,887.07, 458,312.80 and 187,310.76 is: 280,649.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,887.07 : 458,312.80 = 187,310.76 : x
  2. Step 2: Convert to fraction form
    305,887.07/458,312.80 = 187,310.76/x
  3. Step 3: Cross multiply
    305,887.07x = 458,312.80 × 187,310.76
  4. Step 4: Simplify right side
    305,887.07x = 85,846,918,885.73
  5. Step 5: Solve for x
    x = 85,846,918,885.73/305,887.07
  6. Step 6: Final answer
    x = 280,649.06

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1.5x scale

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.