Home / 302,421.96-453,114.54-213,516.36

Finding the Fourth Proportional to 302,421.96, 453,114.54 and 213,516.36

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Solution

The fourth proportional to 302,421.96, 453,114.54 and 213,516.36 is: 319,908.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,421.96 : 453,114.54 = 213,516.36 : x
  2. Step 2: Convert to fraction form
    302,421.96/453,114.54 = 213,516.36/x
  3. Step 3: Cross multiply
    302,421.96x = 453,114.54 × 213,516.36
  4. Step 4: Simplify right side
    302,421.96x = 96,747,367,243.87
  5. Step 5: Solve for x
    x = 96,747,367,243.87/302,421.96
  6. Step 6: Final answer
    x = 319,908.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.