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Finding the Fourth Proportional to 550,228.75, 759,306.05 and 308,510.57

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Solution

The fourth proportional to 550,228.75, 759,306.05 and 308,510.57 is: 425,739.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,228.75 : 759,306.05 = 308,510.57 : x
  2. Step 2: Convert to fraction form
    550,228.75/759,306.05 = 308,510.57/x
  3. Step 3: Cross multiply
    550,228.75x = 759,306.05 × 308,510.57
  4. Step 4: Simplify right side
    550,228.75x = 234,253,943,802.58
  5. Step 5: Solve for x
    x = 234,253,943,802.58/550,228.75
  6. Step 6: Final answer
    x = 425,739.19

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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.