Home / 250,030.50-345,039.45-135,306.65

Finding the Fourth Proportional to 250,030.50, 345,039.45 and 135,306.65

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Solution

The fourth proportional to 250,030.50, 345,039.45 and 135,306.65 is: 186,721.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,030.50 : 345,039.45 = 135,306.65 : x
  2. Step 2: Convert to fraction form
    250,030.50/345,039.45 = 135,306.65/x
  3. Step 3: Cross multiply
    250,030.50x = 345,039.45 × 135,306.65
  4. Step 4: Simplify right side
    250,030.50x = 46,686,132,452.54
  5. Step 5: Solve for x
    x = 46,686,132,452.54/250,030.50
  6. Step 6: Final answer
    x = 186,721.75

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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.