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Finding the Fourth Proportional to 269,735.40, 404,603.10 and 145,319.40

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Solution

The fourth proportional to 269,735.40, 404,603.10 and 145,319.40 is: 217,979.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,735.40 : 404,603.10 = 145,319.40 : x
  2. Step 2: Convert to fraction form
    269,735.40/404,603.10 = 145,319.40/x
  3. Step 3: Cross multiply
    269,735.40x = 404,603.10 × 145,319.40
  4. Step 4: Simplify right side
    269,735.40x = 58,796,679,730.14
  5. Step 5: Solve for x
    x = 58,796,679,730.14/269,735.40
  6. Step 6: Final answer
    x = 217,979.10

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1.5x scale

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.