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Finding the Fourth Proportional to 418,173.84, 627,301.80 and 240,336.72

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Solution

The fourth proportional to 418,173.84, 627,301.80 and 240,336.72 is: 360,528.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,173.84 : 627,301.80 = 240,336.72 : x
  2. Step 2: Convert to fraction form
    418,173.84/627,301.80 = 240,336.72/x
  3. Step 3: Cross multiply
    418,173.84x = 627,301.80 × 240,336.72
  4. Step 4: Simplify right side
    418,173.84x = 150,763,657,062.10
  5. Step 5: Solve for x
    x = 150,763,657,062.10/418,173.84
  6. Step 6: Final answer
    x = 360,528.67

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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.