Home / 405,218.48-559,200.12-223,925.36

Finding the Fourth Proportional to 405,218.48, 559,200.12 and 223,925.36

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Solution

The fourth proportional to 405,218.48, 559,200.12 and 223,925.36 is: 309,016.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,218.48 : 559,200.12 = 223,925.36 : x
  2. Step 2: Convert to fraction form
    405,218.48/559,200.12 = 223,925.36/x
  3. Step 3: Cross multiply
    405,218.48x = 559,200.12 × 223,925.36
  4. Step 4: Simplify right side
    405,218.48x = 125,219,088,183.04
  5. Step 5: Solve for x
    x = 125,219,088,183.04/405,218.48
  6. Step 6: Final answer
    x = 309,016.23

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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.