Home / 339,946.90-509,904.15-115,285.30

Finding the Fourth Proportional to 339,946.90, 509,904.15 and 115,285.30

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Solution

The fourth proportional to 339,946.90, 509,904.15 and 115,285.30 is: 172,922.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,946.90 : 509,904.15 = 115,285.30 : x
  2. Step 2: Convert to fraction form
    339,946.90/509,904.15 = 115,285.30/x
  3. Step 3: Cross multiply
    339,946.90x = 509,904.15 × 115,285.30
  4. Step 4: Simplify right side
    339,946.90x = 58,784,452,904.00
  5. Step 5: Solve for x
    x = 58,784,452,904.00/339,946.90
  6. Step 6: Final answer
    x = 172,922.46

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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.