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Finding the Fourth Proportional to 536,138.60, 740,037.36 and 345,152

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Solution

The fourth proportional to 536,138.60, 740,037.36 and 345,152 is: 476,416.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,138.60 : 740,037.36 = 345,152 : x
  2. Step 2: Convert to fraction form
    536,138.60/740,037.36 = 345,152/x
  3. Step 3: Cross multiply
    536,138.60x = 740,037.36 × 345,152
  4. Step 4: Simplify right side
    536,138.60x = 255,425,374,878.72
  5. Step 5: Solve for x
    x = 255,425,374,878.72/536,138.60
  6. Step 6: Final answer
    x = 476,416.69

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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.