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Finding the Fourth Proportional to 282,471.39, 423,707.78 and 69,240.26

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Solution

The fourth proportional to 282,471.39, 423,707.78 and 69,240.26 is: 103,860.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,471.39 : 423,707.78 = 69,240.26 : x
  2. Step 2: Convert to fraction form
    282,471.39/423,707.78 = 69,240.26/x
  3. Step 3: Cross multiply
    282,471.39x = 423,707.78 × 69,240.26
  4. Step 4: Simplify right side
    282,471.39x = 29,337,638,083.59
  5. Step 5: Solve for x
    x = 29,337,638,083.59/282,471.39
  6. Step 6: Final answer
    x = 103,860.56

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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.