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Finding the Fourth Proportional to 330,274.99, 455,807.60 and 187,060.51

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Solution

The fourth proportional to 330,274.99, 455,807.60 and 187,060.51 is: 258,159.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,274.99 : 455,807.60 = 187,060.51 : x
  2. Step 2: Convert to fraction form
    330,274.99/455,807.60 = 187,060.51/x
  3. Step 3: Cross multiply
    330,274.99x = 455,807.60 × 187,060.51
  4. Step 4: Simplify right side
    330,274.99x = 85,263,601,182.57
  5. Step 5: Solve for x
    x = 85,263,601,182.57/330,274.99
  6. Step 6: Final answer
    x = 258,159.42

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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.