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Finding the Fourth Proportional to 311,527, 429,907.26 and 177,416.92

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Solution

The fourth proportional to 311,527, 429,907.26 and 177,416.92 is: 244,835.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,527 : 429,907.26 = 177,416.92 : x
  2. Step 2: Convert to fraction form
    311,527/429,907.26 = 177,416.92/x
  3. Step 3: Cross multiply
    311,527x = 429,907.26 × 177,416.92
  4. Step 4: Simplify right side
    311,527x = 76,272,821,954.84
  5. Step 5: Solve for x
    x = 76,272,821,954.84/311,527
  6. Step 6: Final answer
    x = 244,835.35

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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.