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Finding the Fourth Proportional to 203,272.56, 304,851.24 and 128,280.24

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Solution

The fourth proportional to 203,272.56, 304,851.24 and 128,280.24 is: 192,384.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,272.56 : 304,851.24 = 128,280.24 : x
  2. Step 2: Convert to fraction form
    203,272.56/304,851.24 = 128,280.24/x
  3. Step 3: Cross multiply
    203,272.56x = 304,851.24 × 128,280.24
  4. Step 4: Simplify right side
    203,272.56x = 39,106,390,231.50
  5. Step 5: Solve for x
    x = 39,106,390,231.50/203,272.56
  6. Step 6: Final answer
    x = 192,384.01

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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.