Home / 357,145.45-492,828.09-211,926.15

Finding the Fourth Proportional to 357,145.45, 492,828.09 and 211,926.15

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Solution

The fourth proportional to 357,145.45, 492,828.09 and 211,926.15 is: 292,438.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,145.45 : 492,828.09 = 211,926.15 : x
  2. Step 2: Convert to fraction form
    357,145.45/492,828.09 = 211,926.15/x
  3. Step 3: Cross multiply
    357,145.45x = 492,828.09 × 211,926.15
  4. Step 4: Simplify right side
    357,145.45x = 104,443,159,725.55
  5. Step 5: Solve for x
    x = 104,443,159,725.55/357,145.45
  6. Step 6: Final answer
    x = 292,438.72

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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.