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Finding the Fourth Proportional to 516,985.85, 775,479.05 and 162,027.52

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Solution

The fourth proportional to 516,985.85, 775,479.05 and 162,027.52 is: 243,041.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,985.85 : 775,479.05 = 162,027.52 : x
  2. Step 2: Convert to fraction form
    516,985.85/775,479.05 = 162,027.52/x
  3. Step 3: Cross multiply
    516,985.85x = 775,479.05 × 162,027.52
  4. Step 4: Simplify right side
    516,985.85x = 125,648,947,283.46
  5. Step 5: Solve for x
    x = 125,648,947,283.46/516,985.85
  6. Step 6: Final answer
    x = 243,041.37

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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.