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Finding the Fourth Proportional to 485,066.40, 727,426.80 and 169,533.60

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Solution

The fourth proportional to 485,066.40, 727,426.80 and 169,533.60 is: 254,240.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,066.40 : 727,426.80 = 169,533.60 : x
  2. Step 2: Convert to fraction form
    485,066.40/727,426.80 = 169,533.60/x
  3. Step 3: Cross multiply
    485,066.40x = 727,426.80 × 169,533.60
  4. Step 4: Simplify right side
    485,066.40x = 123,323,284,140.48
  5. Step 5: Solve for x
    x = 123,323,284,140.48/485,066.40
  6. Step 6: Final answer
    x = 254,240.01

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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.