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Finding the Fourth Proportional to 358,996.93, 495,500.18 and 223,133.48

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Solution

The fourth proportional to 358,996.93, 495,500.18 and 223,133.48 is: 307,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,996.93 : 495,500.18 = 223,133.48 : x
  2. Step 2: Convert to fraction form
    358,996.93/495,500.18 = 223,133.48/x
  3. Step 3: Cross multiply
    358,996.93x = 495,500.18 × 223,133.48
  4. Step 4: Simplify right side
    358,996.93x = 110,562,678,388.36
  5. Step 5: Solve for x
    x = 110,562,678,388.36/358,996.93
  6. Step 6: Final answer
    x = 307,976.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.