Home / 439,985.50-607,187.28-238,781.50

Finding the Fourth Proportional to 439,985.50, 607,187.28 and 238,781.50

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Solution

The fourth proportional to 439,985.50, 607,187.28 and 238,781.50 is: 329,522.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,985.50 : 607,187.28 = 238,781.50 : x
  2. Step 2: Convert to fraction form
    439,985.50/607,187.28 = 238,781.50/x
  3. Step 3: Cross multiply
    439,985.50x = 607,187.28 × 238,781.50
  4. Step 4: Simplify right side
    439,985.50x = 144,985,089,499.32
  5. Step 5: Solve for x
    x = 144,985,089,499.32/439,985.50
  6. Step 6: Final answer
    x = 329,522.43

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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.