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Finding the Fourth Proportional to 243,077.76, 364,614.48 and 85,269.24

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Solution

The fourth proportional to 243,077.76, 364,614.48 and 85,269.24 is: 127,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,077.76 : 364,614.48 = 85,269.24 : x
  2. Step 2: Convert to fraction form
    243,077.76/364,614.48 = 85,269.24/x
  3. Step 3: Cross multiply
    243,077.76x = 364,614.48 × 85,269.24
  4. Step 4: Simplify right side
    243,077.76x = 31,090,399,602.60
  5. Step 5: Solve for x
    x = 31,090,399,602.60/243,077.76
  6. Step 6: Final answer
    x = 127,903.10

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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.