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Finding the Fourth Proportional to 330,499.70, 456,172.53 and 187,345.16

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Solution

The fourth proportional to 330,499.70, 456,172.53 and 187,345.16 is: 258,583.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,499.70 : 456,172.53 = 187,345.16 : x
  2. Step 2: Convert to fraction form
    330,499.70/456,172.53 = 187,345.16/x
  3. Step 3: Cross multiply
    330,499.70x = 456,172.53 × 187,345.16
  4. Step 4: Simplify right side
    330,499.70x = 85,461,715,620.45
  5. Step 5: Solve for x
    x = 85,461,715,620.45/330,499.70
  6. Step 6: Final answer
    x = 258,583.34

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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.