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Finding the Fourth Proportional to 310,512.36, 428,552.40 and 174,557.52

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Solution

The fourth proportional to 310,512.36, 428,552.40 and 174,557.52 is: 240,914.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,512.36 : 428,552.40 = 174,557.52 : x
  2. Step 2: Convert to fraction form
    310,512.36/428,552.40 = 174,557.52/x
  3. Step 3: Cross multiply
    310,512.36x = 428,552.40 × 174,557.52
  4. Step 4: Simplify right side
    310,512.36x = 74,807,044,134.05
  5. Step 5: Solve for x
    x = 74,807,044,134.05/310,512.36
  6. Step 6: Final answer
    x = 240,914.87

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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.