Home / 315,209.84-434,987.66-179,243.90

Finding the Fourth Proportional to 315,209.84, 434,987.66 and 179,243.90

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Solution

The fourth proportional to 315,209.84, 434,987.66 and 179,243.90 is: 247,355.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,209.84 : 434,987.66 = 179,243.90 : x
  2. Step 2: Convert to fraction form
    315,209.84/434,987.66 = 179,243.90/x
  3. Step 3: Cross multiply
    315,209.84x = 434,987.66 × 179,243.90
  4. Step 4: Simplify right side
    315,209.84x = 77,968,884,630.27
  5. Step 5: Solve for x
    x = 77,968,884,630.27/315,209.84
  6. Step 6: Final answer
    x = 247,355.49

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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.