Home / 278,395.08-384,359.33-191,330.15

Finding the Fourth Proportional to 278,395.08, 384,359.33 and 191,330.15

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Solution

The fourth proportional to 278,395.08, 384,359.33 and 191,330.15 is: 264,155.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,395.08 : 384,359.33 = 191,330.15 : x
  2. Step 2: Convert to fraction form
    278,395.08/384,359.33 = 191,330.15/x
  3. Step 3: Cross multiply
    278,395.08x = 384,359.33 × 191,330.15
  4. Step 4: Simplify right side
    278,395.08x = 73,539,527,905.12
  5. Step 5: Solve for x
    x = 73,539,527,905.12/278,395.08
  6. Step 6: Final answer
    x = 264,155.27

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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.