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Finding the Fourth Proportional to 418,219.17, 627,325.98 and 118,699.93

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Solution

The fourth proportional to 418,219.17, 627,325.98 and 118,699.93 is: 178,049.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,219.17 : 627,325.98 = 118,699.93 : x
  2. Step 2: Convert to fraction form
    418,219.17/627,325.98 = 118,699.93/x
  3. Step 3: Cross multiply
    418,219.17x = 627,325.98 × 118,699.93
  4. Step 4: Simplify right side
    418,219.17x = 74,463,549,913.18
  5. Step 5: Solve for x
    x = 74,463,549,913.18/418,219.17
  6. Step 6: Final answer
    x = 178,049.11

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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.