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Finding the Fourth Proportional to 228,653.54, 315,484.89 and 131,886.98

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Solution

The fourth proportional to 228,653.54, 315,484.89 and 131,886.98 is: 181,971.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,653.54 : 315,484.89 = 131,886.98 : x
  2. Step 2: Convert to fraction form
    228,653.54/315,484.89 = 131,886.98/x
  3. Step 3: Cross multiply
    228,653.54x = 315,484.89 × 131,886.98
  4. Step 4: Simplify right side
    228,653.54x = 41,608,349,377.73
  5. Step 5: Solve for x
    x = 41,608,349,377.73/228,653.54
  6. Step 6: Final answer
    x = 181,971.16

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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.