Home / 309,587.04-427,194.36-173,621.25

Finding the Fourth Proportional to 309,587.04, 427,194.36 and 173,621.25

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Solution

The fourth proportional to 309,587.04, 427,194.36 and 173,621.25 is: 239,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,587.04 : 427,194.36 = 173,621.25 : x
  2. Step 2: Convert to fraction form
    309,587.04/427,194.36 = 173,621.25/x
  3. Step 3: Cross multiply
    309,587.04x = 427,194.36 × 173,621.25
  4. Step 4: Simplify right side
    309,587.04x = 74,170,018,776.15
  5. Step 5: Solve for x
    x = 74,170,018,776.15/309,587.04
  6. Step 6: Final answer
    x = 239,577.27

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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.