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Finding the Fourth Proportional to 200,455.50, 276,629.13 and 111,031.50

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Solution

The fourth proportional to 200,455.50, 276,629.13 and 111,031.50 is: 153,223.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,455.50 : 276,629.13 = 111,031.50 : x
  2. Step 2: Convert to fraction form
    200,455.50/276,629.13 = 111,031.50/x
  3. Step 3: Cross multiply
    200,455.50x = 276,629.13 × 111,031.50
  4. Step 4: Simplify right side
    200,455.50x = 30,714,547,247.60
  5. Step 5: Solve for x
    x = 30,714,547,247.60/200,455.50
  6. Step 6: Final answer
    x = 153,223.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.