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Finding the Fourth Proportional to 480,920, 663,700.32 and 268,952

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Solution

The fourth proportional to 480,920, 663,700.32 and 268,952 is: 371,170.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,920 : 663,700.32 = 268,952 : x
  2. Step 2: Convert to fraction form
    480,920/663,700.32 = 268,952/x
  3. Step 3: Cross multiply
    480,920x = 663,700.32 × 268,952
  4. Step 4: Simplify right side
    480,920x = 178,503,528,464.64
  5. Step 5: Solve for x
    x = 178,503,528,464.64/480,920
  6. Step 6: Final answer
    x = 371,170.94

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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.