Home / 278,278.04-383,735.04-238,124.72

Finding the Fourth Proportional to 278,278.04, 383,735.04 and 238,124.72

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Solution

The fourth proportional to 278,278.04, 383,735.04 and 238,124.72 is: 328,365.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,278.04 : 383,735.04 = 238,124.72 : x
  2. Step 2: Convert to fraction form
    278,278.04/383,735.04 = 238,124.72/x
  3. Step 3: Cross multiply
    278,278.04x = 383,735.04 × 238,124.72
  4. Step 4: Simplify right side
    278,278.04x = 91,376,798,954.19
  5. Step 5: Solve for x
    x = 91,376,798,954.19/278,278.04
  6. Step 6: Final answer
    x = 328,365.11

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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.