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Finding the Fourth Proportional to 405,282.62, 559,359.47 and 235,615.16

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Solution

The fourth proportional to 405,282.62, 559,359.47 and 235,615.16 is: 325,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,282.62 : 559,359.47 = 235,615.16 : x
  2. Step 2: Convert to fraction form
    405,282.62/559,359.47 = 235,615.16/x
  3. Step 3: Cross multiply
    405,282.62x = 559,359.47 × 235,615.16
  4. Step 4: Simplify right side
    405,282.62x = 131,793,569,843.49
  5. Step 5: Solve for x
    x = 131,793,569,843.49/405,282.62
  6. Step 6: Final answer
    x = 325,189.30

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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.