Home / 228,617.12-315,496.68-130,498.35

Finding the Fourth Proportional to 228,617.12, 315,496.68 and 130,498.35

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Solution

The fourth proportional to 228,617.12, 315,496.68 and 130,498.35 is: 180,090.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,617.12 : 315,496.68 = 130,498.35 : x
  2. Step 2: Convert to fraction form
    228,617.12/315,496.68 = 130,498.35/x
  3. Step 3: Cross multiply
    228,617.12x = 315,496.68 × 130,498.35
  4. Step 4: Simplify right side
    228,617.12x = 41,171,796,170.48
  5. Step 5: Solve for x
    x = 41,171,796,170.48/228,617.12
  6. Step 6: Final answer
    x = 180,090.61

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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.