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Finding the Fourth Proportional to 202,263.40, 279,124.68 and 111,621.70

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Solution

The fourth proportional to 202,263.40, 279,124.68 and 111,621.70 is: 154,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,263.40 : 279,124.68 = 111,621.70 : x
  2. Step 2: Convert to fraction form
    202,263.40/279,124.68 = 111,621.70/x
  3. Step 3: Cross multiply
    202,263.40x = 279,124.68 × 111,621.70
  4. Step 4: Simplify right side
    202,263.40x = 31,156,371,293.56
  5. Step 5: Solve for x
    x = 31,156,371,293.56/202,263.40
  6. Step 6: Final answer
    x = 154,038.60

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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.