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Finding the Fourth Proportional to 404,480.19, 606,798.32 and 155,142.75

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Solution

The fourth proportional to 404,480.19, 606,798.32 and 155,142.75 is: 232,744.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,480.19 : 606,798.32 = 155,142.75 : x
  2. Step 2: Convert to fraction form
    404,480.19/606,798.32 = 155,142.75/x
  3. Step 3: Cross multiply
    404,480.19x = 606,798.32 × 155,142.75
  4. Step 4: Simplify right side
    404,480.19x = 94,140,359,284.47
  5. Step 5: Solve for x
    x = 94,140,359,284.47/404,480.19
  6. Step 6: Final answer
    x = 232,744.05

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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.