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Finding the Fourth Proportional to 253,441.04, 349,711 and 153,933.88

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Solution

The fourth proportional to 253,441.04, 349,711 and 153,933.88 is: 212,405.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,441.04 : 349,711 = 153,933.88 : x
  2. Step 2: Convert to fraction form
    253,441.04/349,711 = 153,933.88/x
  3. Step 3: Cross multiply
    253,441.04x = 349,711 × 153,933.88
  4. Step 4: Simplify right side
    253,441.04x = 53,832,371,108.68
  5. Step 5: Solve for x
    x = 53,832,371,108.68/253,441.04
  6. Step 6: Final answer
    x = 212,405.90

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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.