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Finding the Fourth Proportional to 525,881.12, 725,773.62 and 305,167.04

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Solution

The fourth proportional to 525,881.12, 725,773.62 and 305,167.04 is: 421,163.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,881.12 : 725,773.62 = 305,167.04 : x
  2. Step 2: Convert to fraction form
    525,881.12/725,773.62 = 305,167.04/x
  3. Step 3: Cross multiply
    525,881.12x = 725,773.62 × 305,167.04
  4. Step 4: Simplify right side
    525,881.12x = 221,482,187,325.49
  5. Step 5: Solve for x
    x = 221,482,187,325.49/525,881.12
  6. Step 6: Final answer
    x = 421,163.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.