Home / 278,760.51-383,986.08-224,894.70

Finding the Fourth Proportional to 278,760.51, 383,986.08 and 224,894.70

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Solution

The fourth proportional to 278,760.51, 383,986.08 and 224,894.70 is: 309,787.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,760.51 : 383,986.08 = 224,894.70 : x
  2. Step 2: Convert to fraction form
    278,760.51/383,986.08 = 224,894.70/x
  3. Step 3: Cross multiply
    278,760.51x = 383,986.08 × 224,894.70
  4. Step 4: Simplify right side
    278,760.51x = 86,356,434,265.78
  5. Step 5: Solve for x
    x = 86,356,434,265.78/278,760.51
  6. Step 6: Final answer
    x = 309,787.19

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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.