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Finding the Fourth Proportional to 203,307.66, 280,575.36 and 112,673.52

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Solution

The fourth proportional to 203,307.66, 280,575.36 and 112,673.52 is: 155,495.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,307.66 : 280,575.36 = 112,673.52 : x
  2. Step 2: Convert to fraction form
    203,307.66/280,575.36 = 112,673.52/x
  3. Step 3: Cross multiply
    203,307.66x = 280,575.36 × 112,673.52
  4. Step 4: Simplify right side
    203,307.66x = 31,613,413,436.47
  5. Step 5: Solve for x
    x = 31,613,413,436.47/203,307.66
  6. Step 6: Final answer
    x = 155,495.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.