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Finding the Fourth Proportional to 339,605.60, 468,510.36 and 212,059.76

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Solution

The fourth proportional to 339,605.60, 468,510.36 and 212,059.76 is: 292,551.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,605.60 : 468,510.36 = 212,059.76 : x
  2. Step 2: Convert to fraction form
    339,605.60/468,510.36 = 212,059.76/x
  3. Step 3: Cross multiply
    339,605.60x = 468,510.36 × 212,059.76
  4. Step 4: Simplify right side
    339,605.60x = 99,352,194,499.11
  5. Step 5: Solve for x
    x = 99,352,194,499.11/339,605.60
  6. Step 6: Final answer
    x = 292,551.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.