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Finding the Fourth Proportional to 286,377.45, 395,177.74 and 165,526.56

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Solution

The fourth proportional to 286,377.45, 395,177.74 and 165,526.56 is: 228,413.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,377.45 : 395,177.74 = 165,526.56 : x
  2. Step 2: Convert to fraction form
    286,377.45/395,177.74 = 165,526.56/x
  3. Step 3: Cross multiply
    286,377.45x = 395,177.74 × 165,526.56
  4. Step 4: Simplify right side
    286,377.45x = 65,412,411,476.96
  5. Step 5: Solve for x
    x = 65,412,411,476.96/286,377.45
  6. Step 6: Final answer
    x = 228,413.28

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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.