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Finding the Fourth Proportional to 303,952.60, 455,272.80 and 197,664.40

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Solution

The fourth proportional to 303,952.60, 455,272.80 and 197,664.40 is: 296,069.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,952.60 : 455,272.80 = 197,664.40 : x
  2. Step 2: Convert to fraction form
    303,952.60/455,272.80 = 197,664.40/x
  3. Step 3: Cross multiply
    303,952.60x = 455,272.80 × 197,664.40
  4. Step 4: Simplify right side
    303,952.60x = 89,991,224,848.32
  5. Step 5: Solve for x
    x = 89,991,224,848.32/303,952.60
  6. Step 6: Final answer
    x = 296,069.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.