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Finding the Fourth Proportional to 450,199.38, 621,241.47 and 246,239.76

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Solution

The fourth proportional to 450,199.38, 621,241.47 and 246,239.76 is: 339,792.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,199.38 : 621,241.47 = 246,239.76 : x
  2. Step 2: Convert to fraction form
    450,199.38/621,241.47 = 246,239.76/x
  3. Step 3: Cross multiply
    450,199.38x = 621,241.47 × 246,239.76
  4. Step 4: Simplify right side
    450,199.38x = 152,974,351,881.10
  5. Step 5: Solve for x
    x = 152,974,351,881.10/450,199.38
  6. Step 6: Final answer
    x = 339,792.45

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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.