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Finding the Fourth Proportional to 213,288.56, 319,877.16 and 63,488.24

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Solution

The fourth proportional to 213,288.56, 319,877.16 and 63,488.24 is: 95,215.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,288.56 : 319,877.16 = 63,488.24 : x
  2. Step 2: Convert to fraction form
    213,288.56/319,877.16 = 63,488.24/x
  3. Step 3: Cross multiply
    213,288.56x = 319,877.16 × 63,488.24
  4. Step 4: Simplify right side
    213,288.56x = 20,308,437,904.60
  5. Step 5: Solve for x
    x = 20,308,437,904.60/213,288.56
  6. Step 6: Final answer
    x = 95,215.79

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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.