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Finding the Fourth Proportional to 388,199.92, 532,853.72 and 344,809.84

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Solution

The fourth proportional to 388,199.92, 532,853.72 and 344,809.84 is: 473,295.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,199.92 : 532,853.72 = 344,809.84 : x
  2. Step 2: Convert to fraction form
    388,199.92/532,853.72 = 344,809.84/x
  3. Step 3: Cross multiply
    388,199.92x = 532,853.72 × 344,809.84
  4. Step 4: Simplify right side
    388,199.92x = 183,733,205,936.61
  5. Step 5: Solve for x
    x = 183,733,205,936.61/388,199.92
  6. Step 6: Final answer
    x = 473,295.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.