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Finding the Fourth Proportional to 545,362.32, 818,084.49 and 145,994.25

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Solution

The fourth proportional to 545,362.32, 818,084.49 and 145,994.25 is: 219,002.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,362.32 : 818,084.49 = 145,994.25 : x
  2. Step 2: Convert to fraction form
    545,362.32/818,084.49 = 145,994.25/x
  3. Step 3: Cross multiply
    545,362.32x = 818,084.49 × 145,994.25
  4. Step 4: Simplify right side
    545,362.32x = 119,435,631,554.18
  5. Step 5: Solve for x
    x = 119,435,631,554.18/545,362.32
  6. Step 6: Final answer
    x = 219,002.35

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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.