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Finding the Fourth Proportional to 358,483.32, 494,697.78 and 197,332.20

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Solution

The fourth proportional to 358,483.32, 494,697.78 and 197,332.20 is: 272,313.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,483.32 : 494,697.78 = 197,332.20 : x
  2. Step 2: Convert to fraction form
    358,483.32/494,697.78 = 197,332.20/x
  3. Step 3: Cross multiply
    358,483.32x = 494,697.78 × 197,332.20
  4. Step 4: Simplify right side
    358,483.32x = 97,619,801,262.52
  5. Step 5: Solve for x
    x = 97,619,801,262.52/358,483.32
  6. Step 6: Final answer
    x = 272,313.37

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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.