Home / 309,533.51-427,126.56-173,573.19

Finding the Fourth Proportional to 309,533.51, 427,126.56 and 173,573.19

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Solution

The fourth proportional to 309,533.51, 427,126.56 and 173,573.19 is: 239,514.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,533.51 : 427,126.56 = 173,573.19 : x
  2. Step 2: Convert to fraction form
    309,533.51/427,126.56 = 173,573.19/x
  3. Step 3: Cross multiply
    309,533.51x = 427,126.56 × 173,573.19
  4. Step 4: Simplify right side
    309,533.51x = 74,137,719,552.93
  5. Step 5: Solve for x
    x = 74,137,719,552.93/309,533.51
  6. Step 6: Final answer
    x = 239,514.36

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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.