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Finding the Fourth Proportional to 310,008.85, 465,035.82 and 129,913.50

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Solution

The fourth proportional to 310,008.85, 465,035.82 and 129,913.50 is: 194,879.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,008.85 : 465,035.82 = 129,913.50 : x
  2. Step 2: Convert to fraction form
    310,008.85/465,035.82 = 129,913.50/x
  3. Step 3: Cross multiply
    310,008.85x = 465,035.82 × 129,913.50
  4. Step 4: Simplify right side
    310,008.85x = 60,414,428,676.39
  5. Step 5: Solve for x
    x = 60,414,428,676.39/310,008.85
  6. Step 6: Final answer
    x = 194,879.69

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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.