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Finding the Fourth Proportional to 510,643.40, 766,310.70 and 230,016.20

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Solution

The fourth proportional to 510,643.40, 766,310.70 and 230,016.20 is: 345,179.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,643.40 : 766,310.70 = 230,016.20 : x
  2. Step 2: Convert to fraction form
    510,643.40/766,310.70 = 230,016.20/x
  3. Step 3: Cross multiply
    510,643.40x = 766,310.70 × 230,016.20
  4. Step 4: Simplify right side
    510,643.40x = 176,263,875,233.34
  5. Step 5: Solve for x
    x = 176,263,875,233.34/510,643.40
  6. Step 6: Final answer
    x = 345,179.97

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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.