Home / 212,455.50-318,683.28-64,711.50

Finding the Fourth Proportional to 212,455.50, 318,683.28 and 64,711.50

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Solution

The fourth proportional to 212,455.50, 318,683.28 and 64,711.50 is: 97,067.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,455.50 : 318,683.28 = 64,711.50 : x
  2. Step 2: Convert to fraction form
    212,455.50/318,683.28 = 64,711.50/x
  3. Step 3: Cross multiply
    212,455.50x = 318,683.28 × 64,711.50
  4. Step 4: Simplify right side
    212,455.50x = 20,622,473,073.72
  5. Step 5: Solve for x
    x = 20,622,473,073.72/212,455.50
  6. Step 6: Final answer
    x = 97,067.26

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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.