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Finding the Fourth Proportional to 202,237.50, 279,087.75 and 112,813.50

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Solution

The fourth proportional to 202,237.50, 279,087.75 and 112,813.50 is: 155,682.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,237.50 : 279,087.75 = 112,813.50 : x
  2. Step 2: Convert to fraction form
    202,237.50/279,087.75 = 112,813.50/x
  3. Step 3: Cross multiply
    202,237.50x = 279,087.75 × 112,813.50
  4. Step 4: Simplify right side
    202,237.50x = 31,484,865,884.63
  5. Step 5: Solve for x
    x = 31,484,865,884.63/202,237.50
  6. Step 6: Final answer
    x = 155,682.63

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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.