Home / 438,825.72-658,261.12-123,307.22

Finding the Fourth Proportional to 438,825.72, 658,261.12 and 123,307.22

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Solution

The fourth proportional to 438,825.72, 658,261.12 and 123,307.22 is: 184,967.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,825.72 : 658,261.12 = 123,307.22 : x
  2. Step 2: Convert to fraction form
    438,825.72/658,261.12 = 123,307.22/x
  3. Step 3: Cross multiply
    438,825.72x = 658,261.12 × 123,307.22
  4. Step 4: Simplify right side
    438,825.72x = 81,168,348,741.29
  5. Step 5: Solve for x
    x = 81,168,348,741.29/438,825.72
  6. Step 6: Final answer
    x = 184,967.16

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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.