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Finding the Fourth Proportional to 278,012.34, 383,370.57 and 237,859.02

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Solution

The fourth proportional to 278,012.34, 383,370.57 and 237,859.02 is: 328,000.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,012.34 : 383,370.57 = 237,859.02 : x
  2. Step 2: Convert to fraction form
    278,012.34/383,370.57 = 237,859.02/x
  3. Step 3: Cross multiply
    278,012.34x = 383,370.57 × 237,859.02
  4. Step 4: Simplify right side
    278,012.34x = 91,188,148,077.04
  5. Step 5: Solve for x
    x = 91,188,148,077.04/278,012.34
  6. Step 6: Final answer
    x = 328,000.36

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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.