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Finding the Fourth Proportional to 309,573.96, 427,030.60 and 194,670.33

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Solution

The fourth proportional to 309,573.96, 427,030.60 and 194,670.33 is: 268,530.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,573.96 : 427,030.60 = 194,670.33 : x
  2. Step 2: Convert to fraction form
    309,573.96/427,030.60 = 194,670.33/x
  3. Step 3: Cross multiply
    309,573.96x = 427,030.60 × 194,670.33
  4. Step 4: Simplify right side
    309,573.96x = 83,130,187,822.10
  5. Step 5: Solve for x
    x = 83,130,187,822.10/309,573.96
  6. Step 6: Final answer
    x = 268,530.94

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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.