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Finding the Fourth Proportional to 155,315.84, 214,334.76 and 88,247.84

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Solution

The fourth proportional to 155,315.84, 214,334.76 and 88,247.84 is: 121,781.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,315.84 : 214,334.76 = 88,247.84 : x
  2. Step 2: Convert to fraction form
    155,315.84/214,334.76 = 88,247.84/x
  3. Step 3: Cross multiply
    155,315.84x = 214,334.76 × 88,247.84
  4. Step 4: Simplify right side
    155,315.84x = 18,914,579,606.92
  5. Step 5: Solve for x
    x = 18,914,579,606.92/155,315.84
  6. Step 6: Final answer
    x = 121,781.39

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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.