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Finding the Fourth Proportional to 245,239.75, 367,953.02 and 85,333.45

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Solution

The fourth proportional to 245,239.75, 367,953.02 and 85,333.45 is: 128,032.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,239.75 : 367,953.02 = 85,333.45 : x
  2. Step 2: Convert to fraction form
    245,239.75/367,953.02 = 85,333.45/x
  3. Step 3: Cross multiply
    245,239.75x = 367,953.02 × 85,333.45
  4. Step 4: Simplify right side
    245,239.75x = 31,398,698,794.75
  5. Step 5: Solve for x
    x = 31,398,698,794.75/245,239.75
  6. Step 6: Final answer
    x = 128,032.67

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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.