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Finding the Fourth Proportional to 330,348.64, 455,868.94 and 179,442.40

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Solution

The fourth proportional to 330,348.64, 455,868.94 and 179,442.40 is: 247,623.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,348.64 : 455,868.94 = 179,442.40 : x
  2. Step 2: Convert to fraction form
    330,348.64/455,868.94 = 179,442.40/x
  3. Step 3: Cross multiply
    330,348.64x = 455,868.94 × 179,442.40
  4. Step 4: Simplify right side
    330,348.64x = 81,802,214,642.17
  5. Step 5: Solve for x
    x = 81,802,214,642.17/330,348.64
  6. Step 6: Final answer
    x = 247,623.89

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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.