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Finding the Fourth Proportional to 518,580, 777,870 and 168,372

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Solution

The fourth proportional to 518,580, 777,870 and 168,372 is: 252,558

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,580 : 777,870 = 168,372 : x
  2. Step 2: Convert to fraction form
    518,580/777,870 = 168,372/x
  3. Step 3: Cross multiply
    518,580x = 777,870 × 168,372
  4. Step 4: Simplify right side
    518,580x = 130,971,527,640
  5. Step 5: Solve for x
    x = 130,971,527,640/518,580
  6. Step 6: Final answer
    x = 252,558

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.