Home / 219,438.57-329,252.93-77,385.34

Finding the Fourth Proportional to 219,438.57, 329,252.93 and 77,385.34

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Solution

The fourth proportional to 219,438.57, 329,252.93 and 77,385.34 is: 116,111.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,438.57 : 329,252.93 = 77,385.34 : x
  2. Step 2: Convert to fraction form
    219,438.57/329,252.93 = 77,385.34/x
  3. Step 3: Cross multiply
    219,438.57x = 329,252.93 × 77,385.34
  4. Step 4: Simplify right side
    219,438.57x = 25,479,348,642.20
  5. Step 5: Solve for x
    x = 25,479,348,642.20/219,438.57
  6. Step 6: Final answer
    x = 116,111.53

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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.