Home / 286,917.60-429,720.30-146,512.20

Finding the Fourth Proportional to 286,917.60, 429,720.30 and 146,512.20

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Solution

The fourth proportional to 286,917.60, 429,720.30 and 146,512.20 is: 219,433.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,917.60 : 429,720.30 = 146,512.20 : x
  2. Step 2: Convert to fraction form
    286,917.60/429,720.30 = 146,512.20/x
  3. Step 3: Cross multiply
    286,917.60x = 429,720.30 × 146,512.20
  4. Step 4: Simplify right side
    286,917.60x = 62,959,266,537.66
  5. Step 5: Solve for x
    x = 62,959,266,537.66/286,917.60
  6. Step 6: Final answer
    x = 219,433.27

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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.