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Finding the Fourth Proportional to 353,480.56, 487,799.28 and 210,237.44

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Solution

The fourth proportional to 353,480.56, 487,799.28 and 210,237.44 is: 290,125.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,480.56 : 487,799.28 = 210,237.44 : x
  2. Step 2: Convert to fraction form
    353,480.56/487,799.28 = 210,237.44/x
  3. Step 3: Cross multiply
    353,480.56x = 487,799.28 × 210,237.44
  4. Step 4: Simplify right side
    353,480.56x = 102,553,671,861.04
  5. Step 5: Solve for x
    x = 102,553,671,861.04/353,480.56
  6. Step 6: Final answer
    x = 290,125.35

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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.