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Finding the Fourth Proportional to 553,193.88, 829,605.96 and 216,147.12

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Solution

The fourth proportional to 553,193.88, 829,605.96 and 216,147.12 is: 324,148.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,193.88 : 829,605.96 = 216,147.12 : x
  2. Step 2: Convert to fraction form
    553,193.88/829,605.96 = 216,147.12/x
  3. Step 3: Cross multiply
    553,193.88x = 829,605.96 × 216,147.12
  4. Step 4: Simplify right side
    553,193.88x = 179,316,938,988.84
  5. Step 5: Solve for x
    x = 179,316,938,988.84/553,193.88
  6. Step 6: Final answer
    x = 324,148.45

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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.