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Finding the Fourth Proportional to 334,338.90, 501,506.58 and 81,620.73

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Solution

The fourth proportional to 334,338.90, 501,506.58 and 81,620.73 is: 122,430.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,338.90 : 501,506.58 = 81,620.73 : x
  2. Step 2: Convert to fraction form
    334,338.90/501,506.58 = 81,620.73/x
  3. Step 3: Cross multiply
    334,338.90x = 501,506.58 × 81,620.73
  4. Step 4: Simplify right side
    334,338.90x = 40,933,333,159.40
  5. Step 5: Solve for x
    x = 40,933,333,159.40/334,338.90
  6. Step 6: Final answer
    x = 122,430.66

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1.5x scale

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.