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Finding the Fourth Proportional to 370,384.82, 511,104.53 and 217,429.25

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Solution

The fourth proportional to 370,384.82, 511,104.53 and 217,429.25 is: 300,036.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,384.82 : 511,104.53 = 217,429.25 : x
  2. Step 2: Convert to fraction form
    370,384.82/511,104.53 = 217,429.25/x
  3. Step 3: Cross multiply
    370,384.82x = 511,104.53 × 217,429.25
  4. Step 4: Simplify right side
    370,384.82x = 111,129,072,617.55
  5. Step 5: Solve for x
    x = 111,129,072,617.55/370,384.82
  6. Step 6: Final answer
    x = 300,036.79

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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.