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Finding the Fourth Proportional to 463,339.50, 639,404.19 and 262,135.50

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Solution

The fourth proportional to 463,339.50, 639,404.19 and 262,135.50 is: 361,744.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,339.50 : 639,404.19 = 262,135.50 : x
  2. Step 2: Convert to fraction form
    463,339.50/639,404.19 = 262,135.50/x
  3. Step 3: Cross multiply
    463,339.50x = 639,404.19 × 262,135.50
  4. Step 4: Simplify right side
    463,339.50x = 167,610,537,047.75
  5. Step 5: Solve for x
    x = 167,610,537,047.75/463,339.50
  6. Step 6: Final answer
    x = 361,744.55

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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.