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Finding the Fourth Proportional to 518,008.37, 777,066.56 and 198,159.62

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Solution

The fourth proportional to 518,008.37, 777,066.56 and 198,159.62 is: 297,260.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,008.37 : 777,066.56 = 198,159.62 : x
  2. Step 2: Convert to fraction form
    518,008.37/777,066.56 = 198,159.62/x
  3. Step 3: Cross multiply
    518,008.37x = 777,066.56 × 198,159.62
  4. Step 4: Simplify right side
    518,008.37x = 153,983,209,368.18
  5. Step 5: Solve for x
    x = 153,983,209,368.18/518,008.37
  6. Step 6: Final answer
    x = 297,260.08

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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.