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Finding the Fourth Proportional to 436,404.51, 654,607.52 and 136,908.67

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Solution

The fourth proportional to 436,404.51, 654,607.52 and 136,908.67 is: 205,363.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,404.51 : 654,607.52 = 136,908.67 : x
  2. Step 2: Convert to fraction form
    436,404.51/654,607.52 = 136,908.67/x
  3. Step 3: Cross multiply
    436,404.51x = 654,607.52 × 136,908.67
  4. Step 4: Simplify right side
    436,404.51x = 89,621,444,935.20
  5. Step 5: Solve for x
    x = 89,621,444,935.20/436,404.51
  6. Step 6: Final answer
    x = 205,363.24

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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.