Home / 339,853.12-509,746.57-103,197.85

Finding the Fourth Proportional to 339,853.12, 509,746.57 and 103,197.85

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Solution

The fourth proportional to 339,853.12, 509,746.57 and 103,197.85 is: 154,786.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,853.12 : 509,746.57 = 103,197.85 : x
  2. Step 2: Convert to fraction form
    339,853.12/509,746.57 = 103,197.85/x
  3. Step 3: Cross multiply
    339,853.12x = 509,746.57 × 103,197.85
  4. Step 4: Simplify right side
    339,853.12x = 52,604,748,536.51
  5. Step 5: Solve for x
    x = 52,604,748,536.51/339,853.12
  6. Step 6: Final answer
    x = 154,786.72

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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.