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Finding the Fourth Proportional to 398,334.42, 549,701.37 and 217,046.19

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Solution

The fourth proportional to 398,334.42, 549,701.37 and 217,046.19 is: 299,523.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,334.42 : 549,701.37 = 217,046.19 : x
  2. Step 2: Convert to fraction form
    398,334.42/549,701.37 = 217,046.19/x
  3. Step 3: Cross multiply
    398,334.42x = 549,701.37 × 217,046.19
  4. Step 4: Simplify right side
    398,334.42x = 119,310,587,996.28
  5. Step 5: Solve for x
    x = 119,310,587,996.28/398,334.42
  6. Step 6: Final answer
    x = 299,523.67

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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.