Home / 339,968.30-509,952.45-140,222.30

Finding the Fourth Proportional to 339,968.30, 509,952.45 and 140,222.30

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Solution

The fourth proportional to 339,968.30, 509,952.45 and 140,222.30 is: 210,333.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,968.30 : 509,952.45 = 140,222.30 : x
  2. Step 2: Convert to fraction form
    339,968.30/509,952.45 = 140,222.30/x
  3. Step 3: Cross multiply
    339,968.30x = 509,952.45 × 140,222.30
  4. Step 4: Simplify right side
    339,968.30x = 71,506,705,429.64
  5. Step 5: Solve for x
    x = 71,506,705,429.64/339,968.30
  6. Step 6: Final answer
    x = 210,333.45

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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.