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Finding the Fourth Proportional to 366,955.40, 550,433.10 and 340,383.35

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Solution

The fourth proportional to 366,955.40, 550,433.10 and 340,383.35 is: 510,575.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,955.40 : 550,433.10 = 340,383.35 : x
  2. Step 2: Convert to fraction form
    366,955.40/550,433.10 = 340,383.35/x
  3. Step 3: Cross multiply
    366,955.40x = 550,433.10 × 340,383.35
  4. Step 4: Simplify right side
    366,955.40x = 187,358,262,528.89
  5. Step 5: Solve for x
    x = 187,358,262,528.89/366,955.40
  6. Step 6: Final answer
    x = 510,575.03

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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.