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Finding the Fourth Proportional to 357,644.70, 536,467.05 and 191,756.70

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Solution

The fourth proportional to 357,644.70, 536,467.05 and 191,756.70 is: 287,635.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,644.70 : 536,467.05 = 191,756.70 : x
  2. Step 2: Convert to fraction form
    357,644.70/536,467.05 = 191,756.70/x
  3. Step 3: Cross multiply
    357,644.70x = 536,467.05 × 191,756.70
  4. Step 4: Simplify right side
    357,644.70x = 102,871,151,166.74
  5. Step 5: Solve for x
    x = 102,871,151,166.74/357,644.70
  6. Step 6: Final answer
    x = 287,635.05

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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.