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Finding the Fourth Proportional to 216,365.84, 324,564.96 and 66,710.24

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Solution

The fourth proportional to 216,365.84, 324,564.96 and 66,710.24 is: 100,070.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,365.84 : 324,564.96 = 66,710.24 : x
  2. Step 2: Convert to fraction form
    216,365.84/324,564.96 = 66,710.24/x
  3. Step 3: Cross multiply
    216,365.84x = 324,564.96 × 66,710.24
  4. Step 4: Simplify right side
    216,365.84x = 21,651,806,377.19
  5. Step 5: Solve for x
    x = 21,651,806,377.19/216,365.84
  6. Step 6: Final answer
    x = 100,070.35

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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.