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Finding the Fourth Proportional to 251,852.37, 377,660.08 and 101,978.67

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Solution

The fourth proportional to 251,852.37, 377,660.08 and 101,978.67 is: 152,920.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,852.37 : 377,660.08 = 101,978.67 : x
  2. Step 2: Convert to fraction form
    251,852.37/377,660.08 = 101,978.67/x
  3. Step 3: Cross multiply
    251,852.37x = 377,660.08 × 101,978.67
  4. Step 4: Simplify right side
    251,852.37x = 38,513,272,670.49
  5. Step 5: Solve for x
    x = 38,513,272,670.49/251,852.37
  6. Step 6: Final answer
    x = 152,920.03

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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.