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Finding the Fourth Proportional to 550,229.75, 759,307.43 and 308,511.57

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Solution

The fourth proportional to 550,229.75, 759,307.43 and 308,511.57 is: 425,740.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,229.75 : 759,307.43 = 308,511.57 : x
  2. Step 2: Convert to fraction form
    550,229.75/759,307.43 = 308,511.57/x
  3. Step 3: Cross multiply
    550,229.75x = 759,307.43 × 308,511.57
  4. Step 4: Simplify right side
    550,229.75x = 234,255,127,341.97
  5. Step 5: Solve for x
    x = 234,255,127,341.97/550,229.75
  6. Step 6: Final answer
    x = 425,740.57

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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.