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Finding the Fourth Proportional to 358,585.31, 494,699.43 and 213,362.13

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Solution

The fourth proportional to 358,585.31, 494,699.43 and 213,362.13 is: 294,351.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,585.31 : 494,699.43 = 213,362.13 : x
  2. Step 2: Convert to fraction form
    358,585.31/494,699.43 = 213,362.13/x
  3. Step 3: Cross multiply
    358,585.31x = 494,699.43 × 213,362.13
  4. Step 4: Simplify right side
    358,585.31x = 105,550,126,749.82
  5. Step 5: Solve for x
    x = 105,550,126,749.82/358,585.31
  6. Step 6: Final answer
    x = 294,351.51

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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.