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Finding the Fourth Proportional to 310,109.88, 427,839.66 and 175,896.12

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Solution

The fourth proportional to 310,109.88, 427,839.66 and 175,896.12 is: 242,673.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,109.88 : 427,839.66 = 175,896.12 : x
  2. Step 2: Convert to fraction form
    310,109.88/427,839.66 = 175,896.12/x
  3. Step 3: Cross multiply
    310,109.88x = 427,839.66 × 175,896.12
  4. Step 4: Simplify right side
    310,109.88x = 75,255,336,176.12
  5. Step 5: Solve for x
    x = 75,255,336,176.12/310,109.88
  6. Step 6: Final answer
    x = 242,673.13

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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.