Home / 219,015.90-328,521.78-69,256.17

Finding the Fourth Proportional to 219,015.90, 328,521.78 and 69,256.17

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Solution

The fourth proportional to 219,015.90, 328,521.78 and 69,256.17 is: 103,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,015.90 : 328,521.78 = 69,256.17 : x
  2. Step 2: Convert to fraction form
    219,015.90/328,521.78 = 69,256.17/x
  3. Step 3: Cross multiply
    219,015.90x = 328,521.78 × 69,256.17
  4. Step 4: Simplify right side
    219,015.90x = 22,752,160,244.38
  5. Step 5: Solve for x
    x = 22,752,160,244.38/219,015.90
  6. Step 6: Final answer
    x = 103,883.60

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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.