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Finding the Fourth Proportional to 363,977.40, 545,966.10 and 349,980.60

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Solution

The fourth proportional to 363,977.40, 545,966.10 and 349,980.60 is: 524,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,977.40 : 545,966.10 = 349,980.60 : x
  2. Step 2: Convert to fraction form
    363,977.40/545,966.10 = 349,980.60/x
  3. Step 3: Cross multiply
    363,977.40x = 545,966.10 × 349,980.60
  4. Step 4: Simplify right side
    363,977.40x = 191,077,543,257.66
  5. Step 5: Solve for x
    x = 191,077,543,257.66/363,977.40
  6. Step 6: Final answer
    x = 524,970.90

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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.