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Finding the Fourth Proportional to 179,447.52, 245,844 and 172,721.28

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Solution

The fourth proportional to 179,447.52, 245,844 and 172,721.28 is: 236,629.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,447.52 : 245,844 = 172,721.28 : x
  2. Step 2: Convert to fraction form
    179,447.52/245,844 = 172,721.28/x
  3. Step 3: Cross multiply
    179,447.52x = 245,844 × 172,721.28
  4. Step 4: Simplify right side
    179,447.52x = 42,462,490,360.32
  5. Step 5: Solve for x
    x = 42,462,490,360.32/179,447.52
  6. Step 6: Final answer
    x = 236,629.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.