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Finding the Fourth Proportional to 292,490.78, 403,777.59 and 185,112.86

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Solution

The fourth proportional to 292,490.78, 403,777.59 and 185,112.86 is: 255,544.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,490.78 : 403,777.59 = 185,112.86 : x
  2. Step 2: Convert to fraction form
    292,490.78/403,777.59 = 185,112.86/x
  3. Step 3: Cross multiply
    292,490.78x = 403,777.59 × 185,112.86
  4. Step 4: Simplify right side
    292,490.78x = 74,744,424,488.81
  5. Step 5: Solve for x
    x = 74,744,424,488.81/292,490.78
  6. Step 6: Final answer
    x = 255,544.55

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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.