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Finding the Fourth Proportional to 312,235.16, 468,353.95 and 75,577.46

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Solution

The fourth proportional to 312,235.16, 468,353.95 and 75,577.46 is: 113,366.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,235.16 : 468,353.95 = 75,577.46 : x
  2. Step 2: Convert to fraction form
    312,235.16/468,353.95 = 75,577.46/x
  3. Step 3: Cross multiply
    312,235.16x = 468,353.95 × 75,577.46
  4. Step 4: Simplify right side
    312,235.16x = 35,396,999,391.25
  5. Step 5: Solve for x
    x = 35,396,999,391.25/312,235.16
  6. Step 6: Final answer
    x = 113,366.48

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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.