Home / 210,001.80-315,002.70-115,195.35

Finding the Fourth Proportional to 210,001.80, 315,002.70 and 115,195.35

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Solution

The fourth proportional to 210,001.80, 315,002.70 and 115,195.35 is: 172,793.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,001.80 : 315,002.70 = 115,195.35 : x
  2. Step 2: Convert to fraction form
    210,001.80/315,002.70 = 115,195.35/x
  3. Step 3: Cross multiply
    210,001.80x = 315,002.70 × 115,195.35
  4. Step 4: Simplify right side
    210,001.80x = 36,286,846,277.45
  5. Step 5: Solve for x
    x = 36,286,846,277.45/210,001.80
  6. Step 6: Final answer
    x = 172,793.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.