Home / 228,108.35-314,779.16-131,308.09

Finding the Fourth Proportional to 228,108.35, 314,779.16 and 131,308.09

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Solution

The fourth proportional to 228,108.35, 314,779.16 and 131,308.09 is: 181,199.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,108.35 : 314,779.16 = 131,308.09 : x
  2. Step 2: Convert to fraction form
    228,108.35/314,779.16 = 131,308.09/x
  3. Step 3: Cross multiply
    228,108.35x = 314,779.16 × 131,308.09
  4. Step 4: Simplify right side
    228,108.35x = 41,333,049,812.73
  5. Step 5: Solve for x
    x = 41,333,049,812.73/228,108.35
  6. Step 6: Final answer
    x = 181,199.19

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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.