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Finding the Fourth Proportional to 423,998.25, 636,288.98 and 174,680.25

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Solution

The fourth proportional to 423,998.25, 636,288.98 and 174,680.25 is: 262,140.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,998.25 : 636,288.98 = 174,680.25 : x
  2. Step 2: Convert to fraction form
    423,998.25/636,288.98 = 174,680.25/x
  3. Step 3: Cross multiply
    423,998.25x = 636,288.98 × 174,680.25
  4. Step 4: Simplify right side
    423,998.25x = 111,147,117,225.24
  5. Step 5: Solve for x
    x = 111,147,117,225.24/423,998.25
  6. Step 6: Final answer
    x = 262,140.51

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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.