Home / 371,083.42-511,778.65-285,250.35

Finding the Fourth Proportional to 371,083.42, 511,778.65 and 285,250.35

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Solution

The fourth proportional to 371,083.42, 511,778.65 and 285,250.35 is: 393,402.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,083.42 : 511,778.65 = 285,250.35 : x
  2. Step 2: Convert to fraction form
    371,083.42/511,778.65 = 285,250.35/x
  3. Step 3: Cross multiply
    371,083.42x = 511,778.65 × 285,250.35
  4. Step 4: Simplify right side
    371,083.42x = 145,985,037,897.16
  5. Step 5: Solve for x
    x = 145,985,037,897.16/371,083.42
  6. Step 6: Final answer
    x = 393,402.22

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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.