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Finding the Fourth Proportional to 270,265.95, 405,448.34 and 90,334.35

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Solution

The fourth proportional to 270,265.95, 405,448.34 and 90,334.35 is: 135,518.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,265.95 : 405,448.34 = 90,334.35 : x
  2. Step 2: Convert to fraction form
    270,265.95/405,448.34 = 90,334.35/x
  3. Step 3: Cross multiply
    270,265.95x = 405,448.34 × 90,334.35
  4. Step 4: Simplify right side
    270,265.95x = 36,625,911,800.81
  5. Step 5: Solve for x
    x = 36,625,911,800.81/270,265.95
  6. Step 6: Final answer
    x = 135,518.04

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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.