Home / 315,222.30-434,990.79-171,981.18

Finding the Fourth Proportional to 315,222.30, 434,990.79 and 171,981.18

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Solution

The fourth proportional to 315,222.30, 434,990.79 and 171,981.18 is: 237,325.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,222.30 : 434,990.79 = 171,981.18 : x
  2. Step 2: Convert to fraction form
    315,222.30/434,990.79 = 171,981.18/x
  3. Step 3: Cross multiply
    315,222.30x = 434,990.79 × 171,981.18
  4. Step 4: Simplify right side
    315,222.30x = 74,810,229,353.33
  5. Step 5: Solve for x
    x = 74,810,229,353.33/315,222.30
  6. Step 6: Final answer
    x = 237,325.31

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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.