Home / 312,240.54-430,895.08-169,003.64

Finding the Fourth Proportional to 312,240.54, 430,895.08 and 169,003.64

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Solution

The fourth proportional to 312,240.54, 430,895.08 and 169,003.64 is: 233,226.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,240.54 : 430,895.08 = 169,003.64 : x
  2. Step 2: Convert to fraction form
    312,240.54/430,895.08 = 169,003.64/x
  3. Step 3: Cross multiply
    312,240.54x = 430,895.08 × 169,003.64
  4. Step 4: Simplify right side
    312,240.54x = 72,822,836,978.09
  5. Step 5: Solve for x
    x = 72,822,836,978.09/312,240.54
  6. Step 6: Final answer
    x = 233,226.72

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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.