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Finding the Fourth Proportional to 236,880.40, 355,320.60 and 148,406.80

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Solution

The fourth proportional to 236,880.40, 355,320.60 and 148,406.80 is: 222,610.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,880.40 : 355,320.60 = 148,406.80 : x
  2. Step 2: Convert to fraction form
    236,880.40/355,320.60 = 148,406.80/x
  3. Step 3: Cross multiply
    236,880.40x = 355,320.60 × 148,406.80
  4. Step 4: Simplify right side
    236,880.40x = 52,731,993,220.08
  5. Step 5: Solve for x
    x = 52,731,993,220.08/236,880.40
  6. Step 6: Final answer
    x = 222,610.20

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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.