Home / 315,186.30-472,451.40-172,812.60

Finding the Fourth Proportional to 315,186.30, 472,451.40 and 172,812.60

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Solution

The fourth proportional to 315,186.30, 472,451.40 and 172,812.60 is: 259,039.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,186.30 : 472,451.40 = 172,812.60 : x
  2. Step 2: Convert to fraction form
    315,186.30/472,451.40 = 172,812.60/x
  3. Step 3: Cross multiply
    315,186.30x = 472,451.40 × 172,812.60
  4. Step 4: Simplify right side
    315,186.30x = 81,645,554,807.64
  5. Step 5: Solve for x
    x = 81,645,554,807.64/315,186.30
  6. Step 6: Final answer
    x = 259,039.03

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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.