Home / 310,338.18-428,285.03-233,722.13

Finding the Fourth Proportional to 310,338.18, 428,285.03 and 233,722.13

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Solution

The fourth proportional to 310,338.18, 428,285.03 and 233,722.13 is: 322,550.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,338.18 : 428,285.03 = 233,722.13 : x
  2. Step 2: Convert to fraction form
    310,338.18/428,285.03 = 233,722.13/x
  3. Step 3: Cross multiply
    310,338.18x = 428,285.03 × 233,722.13
  4. Step 4: Simplify right side
    310,338.18x = 100,099,686,148.68
  5. Step 5: Solve for x
    x = 100,099,686,148.68/310,338.18
  6. Step 6: Final answer
    x = 322,550.34

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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.