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Finding the Fourth Proportional to 251,260, 377,062.80 and 103,516

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Solution

The fourth proportional to 251,260, 377,062.80 and 103,516 is: 155,345.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,260 : 377,062.80 = 103,516 : x
  2. Step 2: Convert to fraction form
    251,260/377,062.80 = 103,516/x
  3. Step 3: Cross multiply
    251,260x = 377,062.80 × 103,516
  4. Step 4: Simplify right side
    251,260x = 39,032,032,804.80
  5. Step 5: Solve for x
    x = 39,032,032,804.80/251,260
  6. Step 6: Final answer
    x = 155,345.19

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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.