Home / 405,904.50-560,139.81-224,616.30

Finding the Fourth Proportional to 405,904.50, 560,139.81 and 224,616.30

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Solution

The fourth proportional to 405,904.50, 560,139.81 and 224,616.30 is: 309,965.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,904.50 : 560,139.81 = 224,616.30 : x
  2. Step 2: Convert to fraction form
    405,904.50/560,139.81 = 224,616.30/x
  3. Step 3: Cross multiply
    405,904.50x = 560,139.81 × 224,616.30
  4. Step 4: Simplify right side
    405,904.50x = 125,816,531,604.90
  5. Step 5: Solve for x
    x = 125,816,531,604.90/405,904.50
  6. Step 6: Final answer
    x = 309,965.85

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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.