Home / 228,962.28-315,987.34-127,020.57

Finding the Fourth Proportional to 228,962.28, 315,987.34 and 127,020.57

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Solution

The fourth proportional to 228,962.28, 315,987.34 and 127,020.57 is: 175,299.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,962.28 : 315,987.34 = 127,020.57 : x
  2. Step 2: Convert to fraction form
    228,962.28/315,987.34 = 127,020.57/x
  3. Step 3: Cross multiply
    228,962.28x = 315,987.34 × 127,020.57
  4. Step 4: Simplify right side
    228,962.28x = 40,136,892,039.58
  5. Step 5: Solve for x
    x = 40,136,892,039.58/228,962.28
  6. Step 6: Final answer
    x = 175,299.15

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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.