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Finding the Fourth Proportional to 212,759.58, 319,140.42 and 63,002.70

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Solution

The fourth proportional to 212,759.58, 319,140.42 and 63,002.70 is: 94,504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,759.58 : 319,140.42 = 63,002.70 : x
  2. Step 2: Convert to fraction form
    212,759.58/319,140.42 = 63,002.70/x
  3. Step 3: Cross multiply
    212,759.58x = 319,140.42 × 63,002.70
  4. Step 4: Simplify right side
    212,759.58x = 20,106,708,139.13
  5. Step 5: Solve for x
    x = 20,106,708,139.13/212,759.58
  6. Step 6: Final answer
    x = 94,504.36

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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.