Home / 219,025.40-328,667.70-159,711.80

Finding the Fourth Proportional to 219,025.40, 328,667.70 and 159,711.80

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Solution

The fourth proportional to 219,025.40, 328,667.70 and 159,711.80 is: 239,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,025.40 : 328,667.70 = 159,711.80 : x
  2. Step 2: Convert to fraction form
    219,025.40/328,667.70 = 159,711.80/x
  3. Step 3: Cross multiply
    219,025.40x = 328,667.70 × 159,711.80
  4. Step 4: Simplify right side
    219,025.40x = 52,492,109,968.86
  5. Step 5: Solve for x
    x = 52,492,109,968.86/219,025.40
  6. Step 6: Final answer
    x = 239,662.20

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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.