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Finding the Fourth Proportional to 275,509.64, 380,105.51 and 180,071.39

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Solution

The fourth proportional to 275,509.64, 380,105.51 and 180,071.39 is: 248,434.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,509.64 : 380,105.51 = 180,071.39 : x
  2. Step 2: Convert to fraction form
    275,509.64/380,105.51 = 180,071.39/x
  3. Step 3: Cross multiply
    275,509.64x = 380,105.51 × 180,071.39
  4. Step 4: Simplify right side
    275,509.64x = 68,446,124,731.47
  5. Step 5: Solve for x
    x = 68,446,124,731.47/275,509.64
  6. Step 6: Final answer
    x = 248,434.60

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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.