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Finding the Fourth Proportional to 243,015.64, 364,996.53 and 198,070.23

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Solution

The fourth proportional to 243,015.64, 364,996.53 and 198,070.23 is: 297,490.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,015.64 : 364,996.53 = 198,070.23 : x
  2. Step 2: Convert to fraction form
    243,015.64/364,996.53 = 198,070.23/x
  3. Step 3: Cross multiply
    243,015.64x = 364,996.53 × 198,070.23
  4. Step 4: Simplify right side
    243,015.64x = 72,294,946,646.30
  5. Step 5: Solve for x
    x = 72,294,946,646.30/243,015.64
  6. Step 6: Final answer
    x = 297,490.92

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1.5x scale

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.