Home / 415,072.50-572,927.07-243,030.80

Finding the Fourth Proportional to 415,072.50, 572,927.07 and 243,030.80

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Solution

The fourth proportional to 415,072.50, 572,927.07 and 243,030.80 is: 335,456.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,072.50 : 572,927.07 = 243,030.80 : x
  2. Step 2: Convert to fraction form
    415,072.50/572,927.07 = 243,030.80/x
  3. Step 3: Cross multiply
    415,072.50x = 572,927.07 × 243,030.80
  4. Step 4: Simplify right side
    415,072.50x = 139,238,921,299.12
  5. Step 5: Solve for x
    x = 139,238,921,299.12/415,072.50
  6. Step 6: Final answer
    x = 335,456.87

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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.