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Finding the Fourth Proportional to 262,434.40, 393,068.40 and 203,077.60

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Solution

The fourth proportional to 262,434.40, 393,068.40 and 203,077.60 is: 304,165.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,434.40 : 393,068.40 = 203,077.60 : x
  2. Step 2: Convert to fraction form
    262,434.40/393,068.40 = 203,077.60/x
  3. Step 3: Cross multiply
    262,434.40x = 393,068.40 × 203,077.60
  4. Step 4: Simplify right side
    262,434.40x = 79,823,387,307.84
  5. Step 5: Solve for x
    x = 79,823,387,307.84/262,434.40
  6. Step 6: Final answer
    x = 304,165.11

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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.