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Finding the Fourth Proportional to 399,955.60, 599,714.70 and 163,030.60

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Solution

The fourth proportional to 399,955.60, 599,714.70 and 163,030.60 is: 244,456.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,955.60 : 599,714.70 = 163,030.60 : x
  2. Step 2: Convert to fraction form
    399,955.60/599,714.70 = 163,030.60/x
  3. Step 3: Cross multiply
    399,955.60x = 599,714.70 × 163,030.60
  4. Step 4: Simplify right side
    399,955.60x = 97,771,847,369.82
  5. Step 5: Solve for x
    x = 97,771,847,369.82/399,955.60
  6. Step 6: Final answer
    x = 244,456.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.