Home / 272,899.36-409,731.60-139,875.04

Finding the Fourth Proportional to 272,899.36, 409,731.60 and 139,875.04

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Solution

The fourth proportional to 272,899.36, 409,731.60 and 139,875.04 is: 210,008.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,899.36 : 409,731.60 = 139,875.04 : x
  2. Step 2: Convert to fraction form
    272,899.36/409,731.60 = 139,875.04/x
  3. Step 3: Cross multiply
    272,899.36x = 409,731.60 × 139,875.04
  4. Step 4: Simplify right side
    272,899.36x = 57,311,223,939.26
  5. Step 5: Solve for x
    x = 57,311,223,939.26/272,899.36
  6. Step 6: Final answer
    x = 210,008.64

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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.