Home / 292,307.78-438,474-92,623.75

Finding the Fourth Proportional to 292,307.78, 438,474 and 92,623.75

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Solution

The fourth proportional to 292,307.78, 438,474 and 92,623.75 is: 138,939.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,307.78 : 438,474 = 92,623.75 : x
  2. Step 2: Convert to fraction form
    292,307.78/438,474 = 92,623.75/x
  3. Step 3: Cross multiply
    292,307.78x = 438,474 × 92,623.75
  4. Step 4: Simplify right side
    292,307.78x = 40,613,106,157.50
  5. Step 5: Solve for x
    x = 40,613,106,157.50/292,307.78
  6. Step 6: Final answer
    x = 138,939.53

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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.