Home / 315,021.17-434,713.43-179,037.15

Finding the Fourth Proportional to 315,021.17, 434,713.43 and 179,037.15

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Solution

The fourth proportional to 315,021.17, 434,713.43 and 179,037.15 is: 247,062.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,021.17 : 434,713.43 = 179,037.15 : x
  2. Step 2: Convert to fraction form
    315,021.17/434,713.43 = 179,037.15/x
  3. Step 3: Cross multiply
    315,021.17x = 434,713.43 × 179,037.15
  4. Step 4: Simplify right side
    315,021.17x = 77,829,853,573.92
  5. Step 5: Solve for x
    x = 77,829,853,573.92/315,021.17
  6. Step 6: Final answer
    x = 247,062.30

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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.