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Finding the Fourth Proportional to 348,053.60, 522,080.40 and 265,109.60

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Solution

The fourth proportional to 348,053.60, 522,080.40 and 265,109.60 is: 397,664.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,053.60 : 522,080.40 = 265,109.60 : x
  2. Step 2: Convert to fraction form
    348,053.60/522,080.40 = 265,109.60/x
  3. Step 3: Cross multiply
    348,053.60x = 522,080.40 × 265,109.60
  4. Step 4: Simplify right side
    348,053.60x = 138,408,526,011.84
  5. Step 5: Solve for x
    x = 138,408,526,011.84/348,053.60
  6. Step 6: Final answer
    x = 397,664.40

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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.