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Finding the Fourth Proportional to 183,744.80, 275,002.80 and 128,448.80

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Solution

The fourth proportional to 183,744.80, 275,002.80 and 128,448.80 is: 192,243.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,744.80 : 275,002.80 = 128,448.80 : x
  2. Step 2: Convert to fraction form
    183,744.80/275,002.80 = 128,448.80/x
  3. Step 3: Cross multiply
    183,744.80x = 275,002.80 × 128,448.80
  4. Step 4: Simplify right side
    183,744.80x = 35,323,779,656.64
  5. Step 5: Solve for x
    x = 35,323,779,656.64/183,744.80
  6. Step 6: Final answer
    x = 192,243.70

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1.5x scale

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.