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Finding the Fourth Proportional to 628,812.40, 942,928.08 and 202,269.10

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Solution

The fourth proportional to 628,812.40, 942,928.08 and 202,269.10 is: 303,310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,812.40 : 942,928.08 = 202,269.10 : x
  2. Step 2: Convert to fraction form
    628,812.40/942,928.08 = 202,269.10/x
  3. Step 3: Cross multiply
    628,812.40x = 942,928.08 × 202,269.10
  4. Step 4: Simplify right side
    628,812.40x = 190,725,214,106.33
  5. Step 5: Solve for x
    x = 190,725,214,106.33/628,812.40
  6. Step 6: Final answer
    x = 303,310.20

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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.