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Finding the Fourth Proportional to 370,693.69, 511,541.05 and 217,747.56

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Solution

The fourth proportional to 370,693.69, 511,541.05 and 217,747.56 is: 300,482.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,693.69 : 511,541.05 = 217,747.56 : x
  2. Step 2: Convert to fraction form
    370,693.69/511,541.05 = 217,747.56/x
  3. Step 3: Cross multiply
    370,693.69x = 511,541.05 × 217,747.56
  4. Step 4: Simplify right side
    370,693.69x = 111,386,815,477.34
  5. Step 5: Solve for x
    x = 111,386,815,477.34/370,693.69
  6. Step 6: Final answer
    x = 300,482.09

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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.