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Finding the Fourth Proportional to 326,314.06, 450,454.72 and 305,886.94

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Solution

The fourth proportional to 326,314.06, 450,454.72 and 305,886.94 is: 422,256.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,314.06 : 450,454.72 = 305,886.94 : x
  2. Step 2: Convert to fraction form
    326,314.06/450,454.72 = 305,886.94/x
  3. Step 3: Cross multiply
    326,314.06x = 450,454.72 × 305,886.94
  4. Step 4: Simplify right side
    326,314.06x = 137,788,215,909.36
  5. Step 5: Solve for x
    x = 137,788,215,909.36/326,314.06
  6. Step 6: Final answer
    x = 422,256.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.