Home / 315,215.47-435,009.56-179,261.83

Finding the Fourth Proportional to 315,215.47, 435,009.56 and 179,261.83

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Solution

The fourth proportional to 315,215.47, 435,009.56 and 179,261.83 is: 247,388.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,215.47 : 435,009.56 = 179,261.83 : x
  2. Step 2: Convert to fraction form
    315,215.47/435,009.56 = 179,261.83/x
  3. Step 3: Cross multiply
    315,215.47x = 435,009.56 × 179,261.83
  4. Step 4: Simplify right side
    315,215.47x = 77,980,609,793.09
  5. Step 5: Solve for x
    x = 77,980,609,793.09/315,215.47
  6. Step 6: Final answer
    x = 247,388.27

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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.