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Finding the Fourth Proportional to 181,500.39, 250,476.36 and 100,931.31

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Solution

The fourth proportional to 181,500.39, 250,476.36 and 100,931.31 is: 139,288.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,500.39 : 250,476.36 = 100,931.31 : x
  2. Step 2: Convert to fraction form
    181,500.39/250,476.36 = 100,931.31/x
  3. Step 3: Cross multiply
    181,500.39x = 250,476.36 × 100,931.31
  4. Step 4: Simplify right side
    181,500.39x = 25,280,907,138.83
  5. Step 5: Solve for x
    x = 25,280,907,138.83/181,500.39
  6. Step 6: Final answer
    x = 139,288.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.