Home / 217,625.40-326,438.10-142,975.80

Finding the Fourth Proportional to 217,625.40, 326,438.10 and 142,975.80

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Solution

The fourth proportional to 217,625.40, 326,438.10 and 142,975.80 is: 214,463.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,625.40 : 326,438.10 = 142,975.80 : x
  2. Step 2: Convert to fraction form
    217,625.40/326,438.10 = 142,975.80/x
  3. Step 3: Cross multiply
    217,625.40x = 326,438.10 × 142,975.80
  4. Step 4: Simplify right side
    217,625.40x = 46,672,748,497.98
  5. Step 5: Solve for x
    x = 46,672,748,497.98/217,625.40
  6. Step 6: Final answer
    x = 214,463.70

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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.