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Finding the Fourth Proportional to 301,225.80, 451,838.70 and 90,836.40

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Solution

The fourth proportional to 301,225.80, 451,838.70 and 90,836.40 is: 136,254.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,225.80 : 451,838.70 = 90,836.40 : x
  2. Step 2: Convert to fraction form
    301,225.80/451,838.70 = 90,836.40/x
  3. Step 3: Cross multiply
    301,225.80x = 451,838.70 × 90,836.40
  4. Step 4: Simplify right side
    301,225.80x = 41,043,400,888.68
  5. Step 5: Solve for x
    x = 41,043,400,888.68/301,225.80
  6. Step 6: Final answer
    x = 136,254.60

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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.