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Finding the Fourth Proportional to 356,458.37, 534,754.99 and 143,242.88

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Solution

The fourth proportional to 356,458.37, 534,754.99 and 143,242.88 is: 214,891.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,458.37 : 534,754.99 = 143,242.88 : x
  2. Step 2: Convert to fraction form
    356,458.37/534,754.99 = 143,242.88/x
  3. Step 3: Cross multiply
    356,458.37x = 534,754.99 × 143,242.88
  4. Step 4: Simplify right side
    356,458.37x = 76,599,842,808.87
  5. Step 5: Solve for x
    x = 76,599,842,808.87/356,458.37
  6. Step 6: Final answer
    x = 214,891.41

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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.