Home / 355,120.31-490,063.13-193,975.40

Finding the Fourth Proportional to 355,120.31, 490,063.13 and 193,975.40

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Solution

The fourth proportional to 355,120.31, 490,063.13 and 193,975.40 is: 267,684.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,120.31 : 490,063.13 = 193,975.40 : x
  2. Step 2: Convert to fraction form
    355,120.31/490,063.13 = 193,975.40/x
  3. Step 3: Cross multiply
    355,120.31x = 490,063.13 × 193,975.40
  4. Step 4: Simplify right side
    355,120.31x = 95,060,192,649.69
  5. Step 5: Solve for x
    x = 95,060,192,649.69/355,120.31
  6. Step 6: Final answer
    x = 267,684.47

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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.