Home / 256,939.11-385,312.82-88,411.77

Finding the Fourth Proportional to 256,939.11, 385,312.82 and 88,411.77

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Solution

The fourth proportional to 256,939.11, 385,312.82 and 88,411.77 is: 132,584.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,939.11 : 385,312.82 = 88,411.77 : x
  2. Step 2: Convert to fraction form
    256,939.11/385,312.82 = 88,411.77/x
  3. Step 3: Cross multiply
    256,939.11x = 385,312.82 × 88,411.77
  4. Step 4: Simplify right side
    256,939.11x = 34,066,187,977.83
  5. Step 5: Solve for x
    x = 34,066,187,977.83/256,939.11
  6. Step 6: Final answer
    x = 132,584.67

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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.