Home / 315,208.12-434,969.48-179,275.14

Finding the Fourth Proportional to 315,208.12, 434,969.48 and 179,275.14

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Solution

The fourth proportional to 315,208.12, 434,969.48 and 179,275.14 is: 247,389.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,208.12 : 434,969.48 = 179,275.14 : x
  2. Step 2: Convert to fraction form
    315,208.12/434,969.48 = 179,275.14/x
  3. Step 3: Cross multiply
    315,208.12x = 434,969.48 × 179,275.14
  4. Step 4: Simplify right side
    315,208.12x = 77,979,214,422.73
  5. Step 5: Solve for x
    x = 77,979,214,422.73/315,208.12
  6. Step 6: Final answer
    x = 247,389.61

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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.