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Finding the Fourth Proportional to 292,519, 438,778.52 and 70,903

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Solution

The fourth proportional to 292,519, 438,778.52 and 70,903 is: 106,354.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,519 : 438,778.52 = 70,903 : x
  2. Step 2: Convert to fraction form
    292,519/438,778.52 = 70,903/x
  3. Step 3: Cross multiply
    292,519x = 438,778.52 × 70,903
  4. Step 4: Simplify right side
    292,519x = 31,110,713,403.56
  5. Step 5: Solve for x
    x = 31,110,713,403.56/292,519
  6. Step 6: Final answer
    x = 106,354.50

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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.