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Finding the Fourth Proportional to 317,416.76, 476,014.42 and 139,826.89

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Solution

The fourth proportional to 317,416.76, 476,014.42 and 139,826.89 is: 209,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,416.76 : 476,014.42 = 139,826.89 : x
  2. Step 2: Convert to fraction form
    317,416.76/476,014.42 = 139,826.89/x
  3. Step 3: Cross multiply
    317,416.76x = 476,014.42 × 139,826.89
  4. Step 4: Simplify right side
    317,416.76x = 66,559,616,189.20
  5. Step 5: Solve for x
    x = 66,559,616,189.20/317,416.76
  6. Step 6: Final answer
    x = 209,691.56

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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.