Home / 315,059.40-472,589.10-196,864.20

Finding the Fourth Proportional to 315,059.40, 472,589.10 and 196,864.20

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Solution

The fourth proportional to 315,059.40, 472,589.10 and 196,864.20 is: 295,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,059.40 : 472,589.10 = 196,864.20 : x
  2. Step 2: Convert to fraction form
    315,059.40/472,589.10 = 196,864.20/x
  3. Step 3: Cross multiply
    315,059.40x = 472,589.10 × 196,864.20
  4. Step 4: Simplify right side
    315,059.40x = 93,035,875,100.22
  5. Step 5: Solve for x
    x = 93,035,875,100.22/315,059.40
  6. Step 6: Final answer
    x = 295,296.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.