Home / 315,120.10-472,285.94-157,392.58

Finding the Fourth Proportional to 315,120.10, 472,285.94 and 157,392.58

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Solution

The fourth proportional to 315,120.10, 472,285.94 and 157,392.58 is: 235,891.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,120.10 : 472,285.94 = 157,392.58 : x
  2. Step 2: Convert to fraction form
    315,120.10/472,285.94 = 157,392.58/x
  3. Step 3: Cross multiply
    315,120.10x = 472,285.94 × 157,392.58
  4. Step 4: Simplify right side
    315,120.10x = 74,334,302,594.33
  5. Step 5: Solve for x
    x = 74,334,302,594.33/315,120.10
  6. Step 6: Final answer
    x = 235,891.97

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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.