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Finding the Fourth Proportional to 316,748.60, 437,120.12 and 180,779.82

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Solution

The fourth proportional to 316,748.60, 437,120.12 and 180,779.82 is: 249,480.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,748.60 : 437,120.12 = 180,779.82 : x
  2. Step 2: Convert to fraction form
    316,748.60/437,120.12 = 180,779.82/x
  3. Step 3: Cross multiply
    316,748.60x = 437,120.12 × 180,779.82
  4. Step 4: Simplify right side
    316,748.60x = 79,022,496,611.98
  5. Step 5: Solve for x
    x = 79,022,496,611.98/316,748.60
  6. Step 6: Final answer
    x = 249,480.18

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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.