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Finding the Fourth Proportional to 606,155.61, 909,200.43 and 185,431.47

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Solution

The fourth proportional to 606,155.61, 909,200.43 and 185,431.47 is: 278,137.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,155.61 : 909,200.43 = 185,431.47 : x
  2. Step 2: Convert to fraction form
    606,155.61/909,200.43 = 185,431.47/x
  3. Step 3: Cross multiply
    606,155.61x = 909,200.43 × 185,431.47
  4. Step 4: Simplify right side
    606,155.61x = 168,594,372,259.53
  5. Step 5: Solve for x
    x = 168,594,372,259.53/606,155.61
  6. Step 6: Final answer
    x = 278,137.11

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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.