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Finding the Fourth Proportional to 370,644.95, 555,756.75 and 145,883.54

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Solution

The fourth proportional to 370,644.95, 555,756.75 and 145,883.54 is: 218,742.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,644.95 : 555,756.75 = 145,883.54 : x
  2. Step 2: Convert to fraction form
    370,644.95/555,756.75 = 145,883.54/x
  3. Step 3: Cross multiply
    370,644.95x = 555,756.75 × 145,883.54
  4. Step 4: Simplify right side
    370,644.95x = 81,075,761,339.48
  5. Step 5: Solve for x
    x = 81,075,761,339.48/370,644.95
  6. Step 6: Final answer
    x = 218,742.39

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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.