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Finding the Fourth Proportional to 290,599.98, 400,881.72 and 252,307.44

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Solution

The fourth proportional to 290,599.98, 400,881.72 and 252,307.44 is: 348,057.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,599.98 : 400,881.72 = 252,307.44 : x
  2. Step 2: Convert to fraction form
    290,599.98/400,881.72 = 252,307.44/x
  3. Step 3: Cross multiply
    290,599.98x = 400,881.72 × 252,307.44
  4. Step 4: Simplify right side
    290,599.98x = 101,145,440,516.00
  5. Step 5: Solve for x
    x = 101,145,440,516.00/290,599.98
  6. Step 6: Final answer
    x = 348,057.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.