Home / 217,823.40-326,735.10-143,173.80

Finding the Fourth Proportional to 217,823.40, 326,735.10 and 143,173.80

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Solution

The fourth proportional to 217,823.40, 326,735.10 and 143,173.80 is: 214,760.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,823.40 : 326,735.10 = 143,173.80 : x
  2. Step 2: Convert to fraction form
    217,823.40/326,735.10 = 143,173.80/x
  3. Step 3: Cross multiply
    217,823.40x = 326,735.10 × 143,173.80
  4. Step 4: Simplify right side
    217,823.40x = 46,779,905,860.38
  5. Step 5: Solve for x
    x = 46,779,905,860.38/217,823.40
  6. Step 6: Final answer
    x = 214,760.70

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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.