Home / 317,749.96-476,519.10-128,161.36

Finding the Fourth Proportional to 317,749.96, 476,519.10 and 128,161.36

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Solution

The fourth proportional to 317,749.96, 476,519.10 and 128,161.36 is: 192,199.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,749.96 : 476,519.10 = 128,161.36 : x
  2. Step 2: Convert to fraction form
    317,749.96/476,519.10 = 128,161.36/x
  3. Step 3: Cross multiply
    317,749.96x = 476,519.10 × 128,161.36
  4. Step 4: Simplify right side
    317,749.96x = 61,071,335,921.98
  5. Step 5: Solve for x
    x = 61,071,335,921.98/317,749.96
  6. Step 6: Final answer
    x = 192,199.35

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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.