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Finding the Fourth Proportional to 310,200.77, 465,333.53 and 85,561.25

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Solution

The fourth proportional to 310,200.77, 465,333.53 and 85,561.25 is: 128,350.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,200.77 : 465,333.53 = 85,561.25 : x
  2. Step 2: Convert to fraction form
    310,200.77/465,333.53 = 85,561.25/x
  3. Step 3: Cross multiply
    310,200.77x = 465,333.53 × 85,561.25
  4. Step 4: Simplify right side
    310,200.77x = 39,814,515,739.24
  5. Step 5: Solve for x
    x = 39,814,515,739.24/310,200.77
  6. Step 6: Final answer
    x = 128,350.79

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1.5x scale

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.