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Finding the Fourth Proportional to 326,895.01, 490,370.69 and 90,237.71

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Solution

The fourth proportional to 326,895.01, 490,370.69 and 90,237.71 is: 135,364.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,895.01 : 490,370.69 = 90,237.71 : x
  2. Step 2: Convert to fraction form
    326,895.01/490,370.69 = 90,237.71/x
  3. Step 3: Cross multiply
    326,895.01x = 490,370.69 × 90,237.71
  4. Step 4: Simplify right side
    326,895.01x = 44,249,929,568.24
  5. Step 5: Solve for x
    x = 44,249,929,568.24/326,895.01
  6. Step 6: Final answer
    x = 135,364.35

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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.