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Finding the Fourth Proportional to 269,870.93, 404,735.74 and 80,280.25

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Solution

The fourth proportional to 269,870.93, 404,735.74 and 80,280.25 is: 120,399.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,870.93 : 404,735.74 = 80,280.25 : x
  2. Step 2: Convert to fraction form
    269,870.93/404,735.74 = 80,280.25/x
  3. Step 3: Cross multiply
    269,870.93x = 404,735.74 × 80,280.25
  4. Step 4: Simplify right side
    269,870.93x = 32,492,283,966.06
  5. Step 5: Solve for x
    x = 32,492,283,966.06/269,870.93
  6. Step 6: Final answer
    x = 120,399.35

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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.