Home / 207,903.65-312,001.28-133,205.45

Finding the Fourth Proportional to 207,903.65, 312,001.28 and 133,205.45

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Solution

The fourth proportional to 207,903.65, 312,001.28 and 133,205.45 is: 199,901.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,903.65 : 312,001.28 = 133,205.45 : x
  2. Step 2: Convert to fraction form
    207,903.65/312,001.28 = 133,205.45/x
  3. Step 3: Cross multiply
    207,903.65x = 312,001.28 × 133,205.45
  4. Step 4: Simplify right side
    207,903.65x = 41,560,270,236.95
  5. Step 5: Solve for x
    x = 41,560,270,236.95/207,903.65
  6. Step 6: Final answer
    x = 199,901.59

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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.