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Finding the Fourth Proportional to 291,374.72, 437,124.60 and 165,075.47

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Solution

The fourth proportional to 291,374.72, 437,124.60 and 165,075.47 is: 247,648.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,374.72 : 437,124.60 = 165,075.47 : x
  2. Step 2: Convert to fraction form
    291,374.72/437,124.60 = 165,075.47/x
  3. Step 3: Cross multiply
    291,374.72x = 437,124.60 × 165,075.47
  4. Step 4: Simplify right side
    291,374.72x = 72,158,546,607.94
  5. Step 5: Solve for x
    x = 72,158,546,607.94/291,374.72
  6. Step 6: Final answer
    x = 247,648.62

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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.