Home / 207,006.45-310,345.65-113,512.20

Finding the Fourth Proportional to 207,006.45, 310,345.65 and 113,512.20

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Solution

The fourth proportional to 207,006.45, 310,345.65 and 113,512.20 is: 170,178.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,006.45 : 310,345.65 = 113,512.20 : x
  2. Step 2: Convert to fraction form
    207,006.45/310,345.65 = 113,512.20/x
  3. Step 3: Cross multiply
    207,006.45x = 310,345.65 × 113,512.20
  4. Step 4: Simplify right side
    207,006.45x = 35,228,017,491.93
  5. Step 5: Solve for x
    x = 35,228,017,491.93/207,006.45
  6. Step 6: Final answer
    x = 170,178.36

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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.