Home / 345,490.84-518,162.82-145,734.04

Finding the Fourth Proportional to 345,490.84, 518,162.82 and 145,734.04

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Solution

The fourth proportional to 345,490.84, 518,162.82 and 145,734.04 is: 218,570.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,490.84 : 518,162.82 = 145,734.04 : x
  2. Step 2: Convert to fraction form
    345,490.84/518,162.82 = 145,734.04/x
  3. Step 3: Cross multiply
    345,490.84x = 518,162.82 × 145,734.04
  4. Step 4: Simplify right side
    345,490.84x = 75,513,961,136.39
  5. Step 5: Solve for x
    x = 75,513,961,136.39/345,490.84
  6. Step 6: Final answer
    x = 218,570.08

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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.