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Finding the Fourth Proportional to 303,392.32, 455,291.62 and 125,899.50

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Solution

The fourth proportional to 303,392.32, 455,291.62 and 125,899.50 is: 188,933.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,392.32 : 455,291.62 = 125,899.50 : x
  2. Step 2: Convert to fraction form
    303,392.32/455,291.62 = 125,899.50/x
  3. Step 3: Cross multiply
    303,392.32x = 455,291.62 × 125,899.50
  4. Step 4: Simplify right side
    303,392.32x = 57,320,987,312.19
  5. Step 5: Solve for x
    x = 57,320,987,312.19/303,392.32
  6. Step 6: Final answer
    x = 188,933.55

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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.