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Finding the Fourth Proportional to 518,499.55, 777,749.33 and 163,541.26

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Solution

The fourth proportional to 518,499.55, 777,749.33 and 163,541.26 is: 245,311.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,499.55 : 777,749.33 = 163,541.26 : x
  2. Step 2: Convert to fraction form
    518,499.55/777,749.33 = 163,541.26/x
  3. Step 3: Cross multiply
    518,499.55x = 777,749.33 × 163,541.26
  4. Step 4: Simplify right side
    518,499.55x = 127,194,105,392.36
  5. Step 5: Solve for x
    x = 127,194,105,392.36/518,499.55
  6. Step 6: Final answer
    x = 245,311.89

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Similar ratio
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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.