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Finding the Fourth Proportional to 316,745.32, 437,115.60 and 180,776.56

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Solution

The fourth proportional to 316,745.32, 437,115.60 and 180,776.56 is: 249,475.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,745.32 : 437,115.60 = 180,776.56 : x
  2. Step 2: Convert to fraction form
    316,745.32/437,115.60 = 180,776.56/x
  3. Step 3: Cross multiply
    316,745.32x = 437,115.60 × 180,776.56
  4. Step 4: Simplify right side
    316,745.32x = 79,020,254,490.34
  5. Step 5: Solve for x
    x = 79,020,254,490.34/316,745.32
  6. Step 6: Final answer
    x = 249,475.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.