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Finding the Fourth Proportional to 613,850.15, 920,829.23 and 187,482.21

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Solution

The fourth proportional to 613,850.15, 920,829.23 and 187,482.21 is: 281,239.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,850.15 : 920,829.23 = 187,482.21 : x
  2. Step 2: Convert to fraction form
    613,850.15/920,829.23 = 187,482.21/x
  3. Step 3: Cross multiply
    613,850.15x = 920,829.23 × 187,482.21
  4. Step 4: Simplify right side
    613,850.15x = 172,639,098,135.59
  5. Step 5: Solve for x
    x = 172,639,098,135.59/613,850.15
  6. Step 6: Final answer
    x = 281,239.81

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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.