Home / 315,039.14-472,494.27-90,339.38

Finding the Fourth Proportional to 315,039.14, 472,494.27 and 90,339.38

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Solution

The fourth proportional to 315,039.14, 472,494.27 and 90,339.38 is: 135,490.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,039.14 : 472,494.27 = 90,339.38 : x
  2. Step 2: Convert to fraction form
    315,039.14/472,494.27 = 90,339.38/x
  3. Step 3: Cross multiply
    315,039.14x = 472,494.27 × 90,339.38
  4. Step 4: Simplify right side
    315,039.14x = 42,684,839,405.35
  5. Step 5: Solve for x
    x = 42,684,839,405.35/315,039.14
  6. Step 6: Final answer
    x = 135,490.59

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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.