Home / 315,220.20-435,003.24-171,980.36

Finding the Fourth Proportional to 315,220.20, 435,003.24 and 171,980.36

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Solution

The fourth proportional to 315,220.20, 435,003.24 and 171,980.36 is: 237,332.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,220.20 : 435,003.24 = 171,980.36 : x
  2. Step 2: Convert to fraction form
    315,220.20/435,003.24 = 171,980.36/x
  3. Step 3: Cross multiply
    315,220.20x = 435,003.24 × 171,980.36
  4. Step 4: Simplify right side
    315,220.20x = 74,812,013,816.37
  5. Step 5: Solve for x
    x = 74,812,013,816.37/315,220.20
  6. Step 6: Final answer
    x = 237,332.55

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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.