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Finding the Fourth Proportional to 515,568.44, 773,438.32 and 216,071.55

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Solution

The fourth proportional to 515,568.44, 773,438.32 and 216,071.55 is: 324,143.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,568.44 : 773,438.32 = 216,071.55 : x
  2. Step 2: Convert to fraction form
    515,568.44/773,438.32 = 216,071.55/x
  3. Step 3: Cross multiply
    515,568.44x = 773,438.32 × 216,071.55
  4. Step 4: Simplify right side
    515,568.44x = 167,118,016,901.89
  5. Step 5: Solve for x
    x = 167,118,016,901.89/515,568.44
  6. Step 6: Final answer
    x = 324,143.22

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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.