Home / 277,788.04-383,320.10-155,257.80

Finding the Fourth Proportional to 277,788.04, 383,320.10 and 155,257.80

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Solution

The fourth proportional to 277,788.04, 383,320.10 and 155,257.80 is: 214,240.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,788.04 : 383,320.10 = 155,257.80 : x
  2. Step 2: Convert to fraction form
    277,788.04/383,320.10 = 155,257.80/x
  3. Step 3: Cross multiply
    277,788.04x = 383,320.10 × 155,257.80
  4. Step 4: Simplify right side
    277,788.04x = 59,513,435,421.78
  5. Step 5: Solve for x
    x = 59,513,435,421.78/277,788.04
  6. Step 6: Final answer
    x = 214,240.45

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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.