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Finding the Fourth Proportional to 310,006.20, 465,009.30 and 132,713.40

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Solution

The fourth proportional to 310,006.20, 465,009.30 and 132,713.40 is: 199,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,006.20 : 465,009.30 = 132,713.40 : x
  2. Step 2: Convert to fraction form
    310,006.20/465,009.30 = 132,713.40/x
  3. Step 3: Cross multiply
    310,006.20x = 465,009.30 × 132,713.40
  4. Step 4: Simplify right side
    310,006.20x = 61,712,965,234.62
  5. Step 5: Solve for x
    x = 61,712,965,234.62/310,006.20
  6. Step 6: Final answer
    x = 199,070.10

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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.