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Finding the Fourth Proportional to 367,643.40, 551,465.10 and 118,325.40

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Solution

The fourth proportional to 367,643.40, 551,465.10 and 118,325.40 is: 177,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,643.40 : 551,465.10 = 118,325.40 : x
  2. Step 2: Convert to fraction form
    367,643.40/551,465.10 = 118,325.40/x
  3. Step 3: Cross multiply
    367,643.40x = 551,465.10 × 118,325.40
  4. Step 4: Simplify right side
    367,643.40x = 65,252,328,543.54
  5. Step 5: Solve for x
    x = 65,252,328,543.54/367,643.40
  6. Step 6: Final answer
    x = 177,488.10

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