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Finding the Fourth Proportional to 228,899.66, 315,879.91 and 126,925.07

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Solution

The fourth proportional to 228,899.66, 315,879.91 and 126,925.07 is: 175,155.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,899.66 : 315,879.91 = 126,925.07 : x
  2. Step 2: Convert to fraction form
    228,899.66/315,879.91 = 126,925.07/x
  3. Step 3: Cross multiply
    228,899.66x = 315,879.91 × 126,925.07
  4. Step 4: Simplify right side
    228,899.66x = 40,093,077,791.63
  5. Step 5: Solve for x
    x = 40,093,077,791.63/228,899.66
  6. Step 6: Final answer
    x = 175,155.69

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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.