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Finding the Fourth Proportional to 353,924.33, 488,416.58 and 210,683.12

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Solution

The fourth proportional to 353,924.33, 488,416.58 and 210,683.12 is: 290,743.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,924.33 : 488,416.58 = 210,683.12 : x
  2. Step 2: Convert to fraction form
    353,924.33/488,416.58 = 210,683.12/x
  3. Step 3: Cross multiply
    353,924.33x = 488,416.58 × 210,683.12
  4. Step 4: Simplify right side
    353,924.33x = 102,901,125,438.63
  5. Step 5: Solve for x
    x = 102,901,125,438.63/353,924.33
  6. Step 6: Final answer
    x = 290,743.30

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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.