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Finding the Fourth Proportional to 292,935.78, 439,403.67 and 93,317.40

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Solution

The fourth proportional to 292,935.78, 439,403.67 and 93,317.40 is: 139,976.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,935.78 : 439,403.67 = 93,317.40 : x
  2. Step 2: Convert to fraction form
    292,935.78/439,403.67 = 93,317.40/x
  3. Step 3: Cross multiply
    292,935.78x = 439,403.67 × 93,317.40
  4. Step 4: Simplify right side
    292,935.78x = 41,004,008,034.86
  5. Step 5: Solve for x
    x = 41,004,008,034.86/292,935.78
  6. Step 6: Final answer
    x = 139,976.10

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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.