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Finding the Fourth Proportional to 404,910.40, 607,864.80 and 255,150.40

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Solution

The fourth proportional to 404,910.40, 607,864.80 and 255,150.40 is: 383,040.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,910.40 : 607,864.80 = 255,150.40 : x
  2. Step 2: Convert to fraction form
    404,910.40/607,864.80 = 255,150.40/x
  3. Step 3: Cross multiply
    404,910.40x = 607,864.80 × 255,150.40
  4. Step 4: Simplify right side
    404,910.40x = 155,096,946,865.92
  5. Step 5: Solve for x
    x = 155,096,946,865.92/404,910.40
  6. Step 6: Final answer
    x = 383,040.17

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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.