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Finding the Fourth Proportional to 216,782.40, 324,752.78 and 159,752.82

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Solution

The fourth proportional to 216,782.40, 324,752.78 and 159,752.82 is: 239,319.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,782.40 : 324,752.78 = 159,752.82 : x
  2. Step 2: Convert to fraction form
    216,782.40/324,752.78 = 159,752.82/x
  3. Step 3: Cross multiply
    216,782.40x = 324,752.78 × 159,752.82
  4. Step 4: Simplify right side
    216,782.40x = 51,880,172,407.84
  5. Step 5: Solve for x
    x = 51,880,172,407.84/216,782.40
  6. Step 6: Final answer
    x = 239,319.12

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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.