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Finding the Fourth Proportional to 310,499.70, 465,749.55 and 192,401.70

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Solution

The fourth proportional to 310,499.70, 465,749.55 and 192,401.70 is: 288,602.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,499.70 : 465,749.55 = 192,401.70 : x
  2. Step 2: Convert to fraction form
    310,499.70/465,749.55 = 192,401.70/x
  3. Step 3: Cross multiply
    310,499.70x = 465,749.55 × 192,401.70
  4. Step 4: Simplify right side
    310,499.70x = 89,611,005,194.24
  5. Step 5: Solve for x
    x = 89,611,005,194.24/310,499.70
  6. Step 6: Final answer
    x = 288,602.55

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Similar ratio
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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.