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Finding the Fourth Proportional to 348,549.60, 521,528.40 and 255,237.60

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Solution

The fourth proportional to 348,549.60, 521,528.40 and 255,237.60 is: 381,907.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,549.60 : 521,528.40 = 255,237.60 : x
  2. Step 2: Convert to fraction form
    348,549.60/521,528.40 = 255,237.60/x
  3. Step 3: Cross multiply
    348,549.60x = 521,528.40 × 255,237.60
  4. Step 4: Simplify right side
    348,549.60x = 133,113,657,147.84
  5. Step 5: Solve for x
    x = 133,113,657,147.84/348,549.60
  6. Step 6: Final answer
    x = 381,907.36

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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.