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Finding the Fourth Proportional to 315,988.66, 473,886.60 and 166,147.66

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Solution

The fourth proportional to 315,988.66, 473,886.60 and 166,147.66 is: 249,170.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,988.66 : 473,886.60 = 166,147.66 : x
  2. Step 2: Convert to fraction form
    315,988.66/473,886.60 = 166,147.66/x
  3. Step 3: Cross multiply
    315,988.66x = 473,886.60 × 166,147.66
  4. Step 4: Simplify right side
    315,988.66x = 78,735,150,599.24
  5. Step 5: Solve for x
    x = 78,735,150,599.24/315,988.66
  6. Step 6: Final answer
    x = 249,170.81

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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.