Home / 280,870.44-421,605.54-121,025.26

Finding the Fourth Proportional to 280,870.44, 421,605.54 and 121,025.26

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Solution

The fourth proportional to 280,870.44, 421,605.54 and 121,025.26 is: 181,667.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,870.44 : 421,605.54 = 121,025.26 : x
  2. Step 2: Convert to fraction form
    280,870.44/421,605.54 = 121,025.26/x
  3. Step 3: Cross multiply
    280,870.44x = 421,605.54 × 121,025.26
  4. Step 4: Simplify right side
    280,870.44x = 51,024,920,095.94
  5. Step 5: Solve for x
    x = 51,024,920,095.94/280,870.44
  6. Step 6: Final answer
    x = 181,667.11

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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.