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Finding the Fourth Proportional to 301,228.16, 451,854.08 and 90,866.09

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Solution

The fourth proportional to 301,228.16, 451,854.08 and 90,866.09 is: 136,302.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,228.16 : 451,854.08 = 90,866.09 : x
  2. Step 2: Convert to fraction form
    301,228.16/451,854.08 = 90,866.09/x
  3. Step 3: Cross multiply
    301,228.16x = 451,854.08 × 90,866.09
  4. Step 4: Simplify right side
    301,228.16x = 41,058,210,786.55
  5. Step 5: Solve for x
    x = 41,058,210,786.55/301,228.16
  6. Step 6: Final answer
    x = 136,302.70

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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.