Home / 370,829.08-554,865.78-221,150.80

Finding the Fourth Proportional to 370,829.08, 554,865.78 and 221,150.80

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Solution

The fourth proportional to 370,829.08, 554,865.78 and 221,150.80 is: 330,904.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,829.08 : 554,865.78 = 221,150.80 : x
  2. Step 2: Convert to fraction form
    370,829.08/554,865.78 = 221,150.80/x
  3. Step 3: Cross multiply
    370,829.08x = 554,865.78 × 221,150.80
  4. Step 4: Simplify right side
    370,829.08x = 122,709,011,139.62
  5. Step 5: Solve for x
    x = 122,709,011,139.62/370,829.08
  6. Step 6: Final answer
    x = 330,904.50

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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.