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Finding the Fourth Proportional to 343,442.34, 515,459.97 and 238,335.12

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Solution

The fourth proportional to 343,442.34, 515,459.97 and 238,335.12 is: 357,708.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,442.34 : 515,459.97 = 238,335.12 : x
  2. Step 2: Convert to fraction form
    343,442.34/515,459.97 = 238,335.12/x
  3. Step 3: Cross multiply
    343,442.34x = 515,459.97 × 238,335.12
  4. Step 4: Simplify right side
    343,442.34x = 122,852,213,805.15
  5. Step 5: Solve for x
    x = 122,852,213,805.15/343,442.34
  6. Step 6: Final answer
    x = 357,708.41

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1.5x scale

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.