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Finding the Fourth Proportional to 216,307.95, 324,462.66 and 66,547.23

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Solution

The fourth proportional to 216,307.95, 324,462.66 and 66,547.23 is: 99,821.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,307.95 : 324,462.66 = 66,547.23 : x
  2. Step 2: Convert to fraction form
    216,307.95/324,462.66 = 66,547.23/x
  3. Step 3: Cross multiply
    216,307.95x = 324,462.66 × 66,547.23
  4. Step 4: Simplify right side
    216,307.95x = 21,592,091,261.43
  5. Step 5: Solve for x
    x = 21,592,091,261.43/216,307.95
  6. Step 6: Final answer
    x = 99,821.07

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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.