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Finding the Fourth Proportional to 347,139.36, 520,506.72 and 169,466.40

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Solution

The fourth proportional to 347,139.36, 520,506.72 and 169,466.40 is: 254,100.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,139.36 : 520,506.72 = 169,466.40 : x
  2. Step 2: Convert to fraction form
    347,139.36/520,506.72 = 169,466.40/x
  3. Step 3: Cross multiply
    347,139.36x = 520,506.72 × 169,466.40
  4. Step 4: Simplify right side
    347,139.36x = 88,208,400,014.21
  5. Step 5: Solve for x
    x = 88,208,400,014.21/347,139.36
  6. Step 6: Final answer
    x = 254,100.83

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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.