Home / 212,280.33-318,423.74-54,505.29

Finding the Fourth Proportional to 212,280.33, 318,423.74 and 54,505.29

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Solution

The fourth proportional to 212,280.33, 318,423.74 and 54,505.29 is: 81,758.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,280.33 : 318,423.74 = 54,505.29 : x
  2. Step 2: Convert to fraction form
    212,280.33/318,423.74 = 54,505.29/x
  3. Step 3: Cross multiply
    212,280.33x = 318,423.74 × 54,505.29
  4. Step 4: Simplify right side
    212,280.33x = 17,355,778,291.58
  5. Step 5: Solve for x
    x = 17,355,778,291.58/212,280.33
  6. Step 6: Final answer
    x = 81,758.77

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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.