Home / 256,823.12-354,396.66-143,624

Finding the Fourth Proportional to 256,823.12, 354,396.66 and 143,624

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Solution

The fourth proportional to 256,823.12, 354,396.66 and 143,624 is: 198,190.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,823.12 : 354,396.66 = 143,624 : x
  2. Step 2: Convert to fraction form
    256,823.12/354,396.66 = 143,624/x
  3. Step 3: Cross multiply
    256,823.12x = 354,396.66 × 143,624
  4. Step 4: Simplify right side
    256,823.12x = 50,899,865,895.84
  5. Step 5: Solve for x
    x = 50,899,865,895.84/256,823.12
  6. Step 6: Final answer
    x = 198,190.36

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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.