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Finding the Fourth Proportional to 520,141.91, 780,246.88 and 160,268.63

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Solution

The fourth proportional to 520,141.91, 780,246.88 and 160,268.63 is: 240,413.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,141.91 : 780,246.88 = 160,268.63 : x
  2. Step 2: Convert to fraction form
    520,141.91/780,246.88 = 160,268.63/x
  3. Step 3: Cross multiply
    520,141.91x = 780,246.88 × 160,268.63
  4. Step 4: Simplify right side
    520,141.91x = 125,049,094,217.47
  5. Step 5: Solve for x
    x = 125,049,094,217.47/520,141.91
  6. Step 6: Final answer
    x = 240,413.42

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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.