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Finding the Fourth Proportional to 339,690.48, 468,780.12 and 188,784.24

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Solution

The fourth proportional to 339,690.48, 468,780.12 and 188,784.24 is: 260,526.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,690.48 : 468,780.12 = 188,784.24 : x
  2. Step 2: Convert to fraction form
    339,690.48/468,780.12 = 188,784.24/x
  3. Step 3: Cross multiply
    339,690.48x = 468,780.12 × 188,784.24
  4. Step 4: Simplify right side
    339,690.48x = 88,498,298,681.31
  5. Step 5: Solve for x
    x = 88,498,298,681.31/339,690.48
  6. Step 6: Final answer
    x = 260,526.28

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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.