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Finding the Fourth Proportional to 278,577.81, 383,748.75 and 237,608.47

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Solution

The fourth proportional to 278,577.81, 383,748.75 and 237,608.47 is: 327,312.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,577.81 : 383,748.75 = 237,608.47 : x
  2. Step 2: Convert to fraction form
    278,577.81/383,748.75 = 237,608.47/x
  3. Step 3: Cross multiply
    278,577.81x = 383,748.75 × 237,608.47
  4. Step 4: Simplify right side
    278,577.81x = 91,181,953,351.91
  5. Step 5: Solve for x
    x = 91,181,953,351.91/278,577.81
  6. Step 6: Final answer
    x = 327,312.33

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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.