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Finding the Fourth Proportional to 436,488.96, 654,542.53 and 220,214.59

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Solution

The fourth proportional to 436,488.96, 654,542.53 and 220,214.59 is: 330,225.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,488.96 : 654,542.53 = 220,214.59 : x
  2. Step 2: Convert to fraction form
    436,488.96/654,542.53 = 220,214.59/x
  3. Step 3: Cross multiply
    436,488.96x = 654,542.53 × 220,214.59
  4. Step 4: Simplify right side
    436,488.96x = 144,139,814,881.51
  5. Step 5: Solve for x
    x = 144,139,814,881.51/436,488.96
  6. Step 6: Final answer
    x = 330,225.57

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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.