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Finding the Fourth Proportional to 358,348.74, 494,079.39 and 328,231.32

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Solution

The fourth proportional to 358,348.74, 494,079.39 and 328,231.32 is: 452,554.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,348.74 : 494,079.39 = 328,231.32 : x
  2. Step 2: Convert to fraction form
    358,348.74/494,079.39 = 328,231.32/x
  3. Step 3: Cross multiply
    358,348.74x = 494,079.39 × 328,231.32
  4. Step 4: Simplify right side
    358,348.74x = 162,172,330,364.50
  5. Step 5: Solve for x
    x = 162,172,330,364.50/358,348.74
  6. Step 6: Final answer
    x = 452,554.49

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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.