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Finding the Fourth Proportional to 411,522.58, 617,357.58 and 145,437.58

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Solution

The fourth proportional to 411,522.58, 617,357.58 and 145,437.58 is: 218,182.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,522.58 : 617,357.58 = 145,437.58 : x
  2. Step 2: Convert to fraction form
    411,522.58/617,357.58 = 145,437.58/x
  3. Step 3: Cross multiply
    411,522.58x = 617,357.58 × 145,437.58
  4. Step 4: Simplify right side
    411,522.58x = 89,786,992,429.86
  5. Step 5: Solve for x
    x = 89,786,992,429.86/411,522.58
  6. Step 6: Final answer
    x = 218,182.42

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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.