Home / 355,849.76-533,774.64-145,438.49

Finding the Fourth Proportional to 355,849.76, 533,774.64 and 145,438.49

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Solution

The fourth proportional to 355,849.76, 533,774.64 and 145,438.49 is: 218,157.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,849.76 : 533,774.64 = 145,438.49 : x
  2. Step 2: Convert to fraction form
    355,849.76/533,774.64 = 145,438.49/x
  3. Step 3: Cross multiply
    355,849.76x = 533,774.64 × 145,438.49
  4. Step 4: Simplify right side
    355,849.76x = 77,631,379,521.72
  5. Step 5: Solve for x
    x = 77,631,379,521.72/355,849.76
  6. Step 6: Final answer
    x = 218,157.74

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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.