Home / 305,350.74-421,386.33-167,528.73

Finding the Fourth Proportional to 305,350.74, 421,386.33 and 167,528.73

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Solution

The fourth proportional to 305,350.74, 421,386.33 and 167,528.73 is: 231,190.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,350.74 : 421,386.33 = 167,528.73 : x
  2. Step 2: Convert to fraction form
    305,350.74/421,386.33 = 167,528.73/x
  3. Step 3: Cross multiply
    305,350.74x = 421,386.33 × 167,528.73
  4. Step 4: Simplify right side
    305,350.74x = 70,594,315,866.62
  5. Step 5: Solve for x
    x = 70,594,315,866.62/305,350.74
  6. Step 6: Final answer
    x = 231,190.91

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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.