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Finding the Fourth Proportional to 207,365.40, 310,817.70 and 89,016.60

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Solution

The fourth proportional to 207,365.40, 310,817.70 and 89,016.60 is: 133,426.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,365.40 : 310,817.70 = 89,016.60 : x
  2. Step 2: Convert to fraction form
    207,365.40/310,817.70 = 89,016.60/x
  3. Step 3: Cross multiply
    207,365.40x = 310,817.70 × 89,016.60
  4. Step 4: Simplify right side
    207,365.40x = 27,667,934,873.82
  5. Step 5: Solve for x
    x = 27,667,934,873.82/207,365.40
  6. Step 6: Final answer
    x = 133,426.00

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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.