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Finding the Fourth Proportional to 280,813.67, 387,522.27 and 159,954.92

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Solution

The fourth proportional to 280,813.67, 387,522.27 and 159,954.92 is: 220,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,813.67 : 387,522.27 = 159,954.92 : x
  2. Step 2: Convert to fraction form
    280,813.67/387,522.27 = 159,954.92/x
  3. Step 3: Cross multiply
    280,813.67x = 387,522.27 × 159,954.92
  4. Step 4: Simplify right side
    280,813.67x = 61,986,093,696.07
  5. Step 5: Solve for x
    x = 61,986,093,696.07/280,813.67
  6. Step 6: Final answer
    x = 220,737.45

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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.