Home / 355,827.51-490,993.45-212,557.14

Finding the Fourth Proportional to 355,827.51, 490,993.45 and 212,557.14

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Solution

The fourth proportional to 355,827.51, 490,993.45 and 212,557.14 is: 293,299.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,827.51 : 490,993.45 = 212,557.14 : x
  2. Step 2: Convert to fraction form
    355,827.51/490,993.45 = 212,557.14/x
  3. Step 3: Cross multiply
    355,827.51x = 490,993.45 × 212,557.14
  4. Step 4: Simplify right side
    355,827.51x = 104,364,163,490.73
  5. Step 5: Solve for x
    x = 104,364,163,490.73/355,827.51
  6. Step 6: Final answer
    x = 293,299.87

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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.