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Finding the Fourth Proportional to 354,734.03, 489,543.77 and 201,794.39

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Solution

The fourth proportional to 354,734.03, 489,543.77 and 201,794.39 is: 278,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,734.03 : 489,543.77 = 201,794.39 : x
  2. Step 2: Convert to fraction form
    354,734.03/489,543.77 = 201,794.39/x
  3. Step 3: Cross multiply
    354,734.03x = 489,543.77 × 201,794.39
  4. Step 4: Simplify right side
    354,734.03x = 98,787,182,988.76
  5. Step 5: Solve for x
    x = 98,787,182,988.76/354,734.03
  6. Step 6: Final answer
    x = 278,482.40

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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.