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Finding the Fourth Proportional to 356,539.86, 492,030.45 and 195,393.60

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Solution

The fourth proportional to 356,539.86, 492,030.45 and 195,393.60 is: 269,646.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,539.86 : 492,030.45 = 195,393.60 : x
  2. Step 2: Convert to fraction form
    356,539.86/492,030.45 = 195,393.60/x
  3. Step 3: Cross multiply
    356,539.86x = 492,030.45 × 195,393.60
  4. Step 4: Simplify right side
    356,539.86x = 96,139,600,935.12
  5. Step 5: Solve for x
    x = 96,139,600,935.12/356,539.86
  6. Step 6: Final answer
    x = 269,646.15

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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.