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Finding the Fourth Proportional to 450,206.88, 621,184.32 and 268,885.92

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Solution

The fourth proportional to 450,206.88, 621,184.32 and 268,885.92 is: 371,002.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,206.88 : 621,184.32 = 268,885.92 : x
  2. Step 2: Convert to fraction form
    450,206.88/621,184.32 = 268,885.92/x
  3. Step 3: Cross multiply
    450,206.88x = 621,184.32 × 268,885.92
  4. Step 4: Simplify right side
    450,206.88x = 167,027,717,372.77
  5. Step 5: Solve for x
    x = 167,027,717,372.77/450,206.88
  6. Step 6: Final answer
    x = 371,002.14

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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.