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Finding the Fourth Proportional to 511,246.40, 766,984.80 and 156,276.80

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Solution

The fourth proportional to 511,246.40, 766,984.80 and 156,276.80 is: 234,450.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,246.40 : 766,984.80 = 156,276.80 : x
  2. Step 2: Convert to fraction form
    511,246.40/766,984.80 = 156,276.80/x
  3. Step 3: Cross multiply
    511,246.40x = 766,984.80 × 156,276.80
  4. Step 4: Simplify right side
    511,246.40x = 119,861,930,192.64
  5. Step 5: Solve for x
    x = 119,861,930,192.64/511,246.40
  6. Step 6: Final answer
    x = 234,450.41

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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.