Home / 228,253.47-342,099.77-128,203.35

Finding the Fourth Proportional to 228,253.47, 342,099.77 and 128,203.35

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Solution

The fourth proportional to 228,253.47, 342,099.77 and 128,203.35 is: 192,147.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,253.47 : 342,099.77 = 128,203.35 : x
  2. Step 2: Convert to fraction form
    228,253.47/342,099.77 = 128,203.35/x
  3. Step 3: Cross multiply
    228,253.47x = 342,099.77 × 128,203.35
  4. Step 4: Simplify right side
    228,253.47x = 43,858,336,548.23
  5. Step 5: Solve for x
    x = 43,858,336,548.23/228,253.47
  6. Step 6: Final answer
    x = 192,147.51

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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.