Home / 315,736.38-473,678.54-215,943.57

Finding the Fourth Proportional to 315,736.38, 473,678.54 and 215,943.57

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Solution

The fourth proportional to 315,736.38, 473,678.54 and 215,943.57 is: 323,965.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,736.38 : 473,678.54 = 215,943.57 : x
  2. Step 2: Convert to fraction form
    315,736.38/473,678.54 = 215,943.57/x
  3. Step 3: Cross multiply
    315,736.38x = 473,678.54 × 215,943.57
  4. Step 4: Simplify right side
    315,736.38x = 102,287,833,880.27
  5. Step 5: Solve for x
    x = 102,287,833,880.27/315,736.38
  6. Step 6: Final answer
    x = 323,965.94

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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.