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Finding the Fourth Proportional to 370,850.38, 511,712.87 and 243,683.62

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Solution

The fourth proportional to 370,850.38, 511,712.87 and 243,683.62 is: 336,243.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,850.38 : 511,712.87 = 243,683.62 : x
  2. Step 2: Convert to fraction form
    370,850.38/511,712.87 = 243,683.62/x
  3. Step 3: Cross multiply
    370,850.38x = 511,712.87 × 243,683.62
  4. Step 4: Simplify right side
    370,850.38x = 124,696,046,313.59
  5. Step 5: Solve for x
    x = 124,696,046,313.59/370,850.38
  6. Step 6: Final answer
    x = 336,243.54

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1.5x scale

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.