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Finding the Fourth Proportional to 303,307.12, 454,921.03 and 90,070.67

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Solution

The fourth proportional to 303,307.12, 454,921.03 and 90,070.67 is: 135,094.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,307.12 : 454,921.03 = 90,070.67 : x
  2. Step 2: Convert to fraction form
    303,307.12/454,921.03 = 90,070.67/x
  3. Step 3: Cross multiply
    303,307.12x = 454,921.03 × 90,070.67
  4. Step 4: Simplify right side
    303,307.12x = 40,975,040,153.50
  5. Step 5: Solve for x
    x = 40,975,040,153.50/303,307.12
  6. Step 6: Final answer
    x = 135,094.23

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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.