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Finding the Fourth Proportional to 207,243.60, 310,908.60 and 118,424.40

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Solution

The fourth proportional to 207,243.60, 310,908.60 and 118,424.40 is: 177,661.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,243.60 : 310,908.60 = 118,424.40 : x
  2. Step 2: Convert to fraction form
    207,243.60/310,908.60 = 118,424.40/x
  3. Step 3: Cross multiply
    207,243.60x = 310,908.60 × 118,424.40
  4. Step 4: Simplify right side
    207,243.60x = 36,819,164,409.84
  5. Step 5: Solve for x
    x = 36,819,164,409.84/207,243.60
  6. Step 6: Final answer
    x = 177,661.29

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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.