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Finding the Fourth Proportional to 330,499.95, 456,172.88 and 187,345.41

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Solution

The fourth proportional to 330,499.95, 456,172.88 and 187,345.41 is: 258,583.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,499.95 : 456,172.88 = 187,345.41 : x
  2. Step 2: Convert to fraction form
    330,499.95/456,172.88 = 187,345.41/x
  3. Step 3: Cross multiply
    330,499.95x = 456,172.88 × 187,345.41
  4. Step 4: Simplify right side
    330,499.95x = 85,461,894,297.75
  5. Step 5: Solve for x
    x = 85,461,894,297.75/330,499.95
  6. Step 6: Final answer
    x = 258,583.68

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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.