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Finding the Fourth Proportional to 354,132.76, 488,685.80 and 192,987.32

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Solution

The fourth proportional to 354,132.76, 488,685.80 and 192,987.32 is: 266,313.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,132.76 : 488,685.80 = 192,987.32 : x
  2. Step 2: Convert to fraction form
    354,132.76/488,685.80 = 192,987.32/x
  3. Step 3: Cross multiply
    354,132.76x = 488,685.80 × 192,987.32
  4. Step 4: Simplify right side
    354,132.76x = 94,310,162,864.06
  5. Step 5: Solve for x
    x = 94,310,162,864.06/354,132.76
  6. Step 6: Final answer
    x = 266,313.01

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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.