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Finding the Fourth Proportional to 197,480, 272,522.58 and 108,056

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Solution

The fourth proportional to 197,480, 272,522.58 and 108,056 is: 149,117.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,480 : 272,522.58 = 108,056 : x
  2. Step 2: Convert to fraction form
    197,480/272,522.58 = 108,056/x
  3. Step 3: Cross multiply
    197,480x = 272,522.58 × 108,056
  4. Step 4: Simplify right side
    197,480x = 29,447,699,904.48
  5. Step 5: Solve for x
    x = 29,447,699,904.48/197,480
  6. Step 6: Final answer
    x = 149,117.38

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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.