Home / 278,018.27-383,661.05-157,155.33

Finding the Fourth Proportional to 278,018.27, 383,661.05 and 157,155.33

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Solution

The fourth proportional to 278,018.27, 383,661.05 and 157,155.33 is: 216,872.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,018.27 : 383,661.05 = 157,155.33 : x
  2. Step 2: Convert to fraction form
    278,018.27/383,661.05 = 157,155.33/x
  3. Step 3: Cross multiply
    278,018.27x = 383,661.05 × 157,155.33
  4. Step 4: Simplify right side
    278,018.27x = 60,294,378,135.12
  5. Step 5: Solve for x
    x = 60,294,378,135.12/278,018.27
  6. Step 6: Final answer
    x = 216,872.00

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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.