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Finding the Fourth Proportional to 550,160.70, 759,209.67 and 308,456.70

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Solution

The fourth proportional to 550,160.70, 759,209.67 and 308,456.70 is: 425,663.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,160.70 : 759,209.67 = 308,456.70 : x
  2. Step 2: Convert to fraction form
    550,160.70/759,209.67 = 308,456.70/x
  3. Step 3: Cross multiply
    550,160.70x = 759,209.67 × 308,456.70
  4. Step 4: Simplify right side
    550,160.70x = 234,183,309,416.29
  5. Step 5: Solve for x
    x = 234,183,309,416.29/550,160.70
  6. Step 6: Final answer
    x = 425,663.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.