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Finding the Fourth Proportional to 296,837.41, 445,260.98 and 86,486.89

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Solution

The fourth proportional to 296,837.41, 445,260.98 and 86,486.89 is: 129,731.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,837.41 : 445,260.98 = 86,486.89 : x
  2. Step 2: Convert to fraction form
    296,837.41/445,260.98 = 86,486.89/x
  3. Step 3: Cross multiply
    296,837.41x = 445,260.98 × 86,486.89
  4. Step 4: Simplify right side
    296,837.41x = 38,509,237,398.55
  5. Step 5: Solve for x
    x = 38,509,237,398.55/296,837.41
  6. Step 6: Final answer
    x = 129,731.75

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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.