Home / 219,639.20-329,199.60-164,170.40

Finding the Fourth Proportional to 219,639.20, 329,199.60 and 164,170.40

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Solution

The fourth proportional to 219,639.20, 329,199.60 and 164,170.40 is: 246,061.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,639.20 : 329,199.60 = 164,170.40 : x
  2. Step 2: Convert to fraction form
    219,639.20/329,199.60 = 164,170.40/x
  3. Step 3: Cross multiply
    219,639.20x = 329,199.60 × 164,170.40
  4. Step 4: Simplify right side
    219,639.20x = 54,044,830,011.84
  5. Step 5: Solve for x
    x = 54,044,830,011.84/219,639.20
  6. Step 6: Final answer
    x = 246,061.86

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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.