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Finding the Fourth Proportional to 315,356.21, 473,096.63 and 115,678.45

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Solution

The fourth proportional to 315,356.21, 473,096.63 and 115,678.45 is: 173,540.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,356.21 : 473,096.63 = 115,678.45 : x
  2. Step 2: Convert to fraction form
    315,356.21/473,096.63 = 115,678.45/x
  3. Step 3: Cross multiply
    315,356.21x = 473,096.63 × 115,678.45
  4. Step 4: Simplify right side
    315,356.21x = 54,727,084,858.62
  5. Step 5: Solve for x
    x = 54,727,084,858.62/315,356.21
  6. Step 6: Final answer
    x = 173,540.53

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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.