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Finding the Fourth Proportional to 181,448.66, 250,384.95 and 100,871.28

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Solution

The fourth proportional to 181,448.66, 250,384.95 and 100,871.28 is: 139,194.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,448.66 : 250,384.95 = 100,871.28 : x
  2. Step 2: Convert to fraction form
    181,448.66/250,384.95 = 100,871.28/x
  3. Step 3: Cross multiply
    181,448.66x = 250,384.95 × 100,871.28
  4. Step 4: Simplify right side
    181,448.66x = 25,256,650,399.24
  5. Step 5: Solve for x
    x = 25,256,650,399.24/181,448.66
  6. Step 6: Final answer
    x = 139,194.47

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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.