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Finding the Fourth Proportional to 334,994.52, 502,509.08 and 85,678.68

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Solution

The fourth proportional to 334,994.52, 502,509.08 and 85,678.68 is: 128,522.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,994.52 : 502,509.08 = 85,678.68 : x
  2. Step 2: Convert to fraction form
    334,994.52/502,509.08 = 85,678.68/x
  3. Step 3: Cross multiply
    334,994.52x = 502,509.08 × 85,678.68
  4. Step 4: Simplify right side
    334,994.52x = 43,054,314,662.41
  5. Step 5: Solve for x
    x = 43,054,314,662.41/334,994.52
  6. Step 6: Final answer
    x = 128,522.44

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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.