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Finding the Fourth Proportional to 350,686.77, 483,624.87 and 221,400.64

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Solution

The fourth proportional to 350,686.77, 483,624.87 and 221,400.64 is: 305,329.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,686.77 : 483,624.87 = 221,400.64 : x
  2. Step 2: Convert to fraction form
    350,686.77/483,624.87 = 221,400.64/x
  3. Step 3: Cross multiply
    350,686.77x = 483,624.87 × 221,400.64
  4. Step 4: Simplify right side
    350,686.77x = 107,074,855,737.92
  5. Step 5: Solve for x
    x = 107,074,855,737.92/350,686.77
  6. Step 6: Final answer
    x = 305,329.04

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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.