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Finding the Fourth Proportional to 178,008, 245,651.76 and 98,520

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Solution

The fourth proportional to 178,008, 245,651.76 and 98,520 is: 135,958.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,008 : 245,651.76 = 98,520 : x
  2. Step 2: Convert to fraction form
    178,008/245,651.76 = 98,520/x
  3. Step 3: Cross multiply
    178,008x = 245,651.76 × 98,520
  4. Step 4: Simplify right side
    178,008x = 24,201,611,395.20
  5. Step 5: Solve for x
    x = 24,201,611,395.20/178,008
  6. Step 6: Final answer
    x = 135,958.00

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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.