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Finding the Fourth Proportional to 202,263.50, 279,123.75 and 112,839.50

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Solution

The fourth proportional to 202,263.50, 279,123.75 and 112,839.50 is: 155,718.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,263.50 : 279,123.75 = 112,839.50 : x
  2. Step 2: Convert to fraction form
    202,263.50/279,123.75 = 112,839.50/x
  3. Step 3: Cross multiply
    202,263.50x = 279,123.75 × 112,839.50
  4. Step 4: Simplify right side
    202,263.50x = 31,496,184,388.13
  5. Step 5: Solve for x
    x = 31,496,184,388.13/202,263.50
  6. Step 6: Final answer
    x = 155,718.58

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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.