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Finding the Fourth Proportional to 330,275.37, 455,808.12 and 187,060.89

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Solution

The fourth proportional to 330,275.37, 455,808.12 and 187,060.89 is: 258,159.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,275.37 : 455,808.12 = 187,060.89 : x
  2. Step 2: Convert to fraction form
    330,275.37/455,808.12 = 187,060.89/x
  3. Step 3: Cross multiply
    330,275.37x = 455,808.12 × 187,060.89
  4. Step 4: Simplify right side
    330,275.37x = 85,263,869,382.08
  5. Step 5: Solve for x
    x = 85,263,869,382.08/330,275.37
  6. Step 6: Final answer
    x = 258,159.94

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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.