Home / 270,226.45-405,339.54-70,545.12

Finding the Fourth Proportional to 270,226.45, 405,339.54 and 70,545.12

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Solution

The fourth proportional to 270,226.45, 405,339.54 and 70,545.12 is: 105,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,226.45 : 405,339.54 = 70,545.12 : x
  2. Step 2: Convert to fraction form
    270,226.45/405,339.54 = 70,545.12/x
  3. Step 3: Cross multiply
    270,226.45x = 405,339.54 × 70,545.12
  4. Step 4: Simplify right side
    270,226.45x = 28,594,726,490.04
  5. Step 5: Solve for x
    x = 28,594,726,490.04/270,226.45
  6. Step 6: Final answer
    x = 105,817.64

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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.