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Finding the Fourth Proportional to 356,859.56, 535,119.84 and 207,145.77

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Solution

The fourth proportional to 356,859.56, 535,119.84 and 207,145.77 is: 310,620.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,859.56 : 535,119.84 = 207,145.77 : x
  2. Step 2: Convert to fraction form
    356,859.56/535,119.84 = 207,145.77/x
  3. Step 3: Cross multiply
    356,859.56x = 535,119.84 × 207,145.77
  4. Step 4: Simplify right side
    356,859.56x = 110,847,811,299.08
  5. Step 5: Solve for x
    x = 110,847,811,299.08/356,859.56
  6. Step 6: Final answer
    x = 310,620.27

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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.