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Finding the Fourth Proportional to 251,346, 377,015.71 and 61,808

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Solution

The fourth proportional to 251,346, 377,015.71 and 61,808 is: 92,711.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,346 : 377,015.71 = 61,808 : x
  2. Step 2: Convert to fraction form
    251,346/377,015.71 = 61,808/x
  3. Step 3: Cross multiply
    251,346x = 377,015.71 × 61,808
  4. Step 4: Simplify right side
    251,346x = 23,302,587,003.68
  5. Step 5: Solve for x
    x = 23,302,587,003.68/251,346
  6. Step 6: Final answer
    x = 92,711.19

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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.