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Finding the Fourth Proportional to 177,785.63, 266,678.71 and 72,604.61

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Solution

The fourth proportional to 177,785.63, 266,678.71 and 72,604.61 is: 108,907.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,785.63 : 266,678.71 = 72,604.61 : x
  2. Step 2: Convert to fraction form
    177,785.63/266,678.71 = 72,604.61/x
  3. Step 3: Cross multiply
    177,785.63x = 266,678.71 × 72,604.61
  4. Step 4: Simplify right side
    177,785.63x = 19,362,102,401.46
  5. Step 5: Solve for x
    x = 19,362,102,401.46/177,785.63
  6. Step 6: Final answer
    x = 108,907.02

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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.