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Finding the Fourth Proportional to 353,690.01, 488,016.54 and 210,422.07

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Solution

The fourth proportional to 353,690.01, 488,016.54 and 210,422.07 is: 290,337.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,690.01 : 488,016.54 = 210,422.07 : x
  2. Step 2: Convert to fraction form
    353,690.01/488,016.54 = 210,422.07/x
  3. Step 3: Cross multiply
    353,690.01x = 488,016.54 × 210,422.07
  4. Step 4: Simplify right side
    353,690.01x = 102,689,450,541.04
  5. Step 5: Solve for x
    x = 102,689,450,541.04/353,690.01
  6. Step 6: Final answer
    x = 290,337.44

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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.