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Finding the Fourth Proportional to 270,155.52, 405,203.04 and 103,826.88

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Solution

The fourth proportional to 270,155.52, 405,203.04 and 103,826.88 is: 155,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,155.52 : 405,203.04 = 103,826.88 : x
  2. Step 2: Convert to fraction form
    270,155.52/405,203.04 = 103,826.88/x
  3. Step 3: Cross multiply
    270,155.52x = 405,203.04 × 103,826.88
  4. Step 4: Simplify right side
    270,155.52x = 42,070,967,409.72
  5. Step 5: Solve for x
    x = 42,070,967,409.72/270,155.52
  6. Step 6: Final answer
    x = 155,728.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.