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Finding the Fourth Proportional to 200,038.85, 276,079.73 and 115,159.49

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Solution

The fourth proportional to 200,038.85, 276,079.73 and 115,159.49 is: 158,935.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,038.85 : 276,079.73 = 115,159.49 : x
  2. Step 2: Convert to fraction form
    200,038.85/276,079.73 = 115,159.49/x
  3. Step 3: Cross multiply
    200,038.85x = 276,079.73 × 115,159.49
  4. Step 4: Simplify right side
    200,038.85x = 31,793,200,330.34
  5. Step 5: Solve for x
    x = 31,793,200,330.34/200,038.85
  6. Step 6: Final answer
    x = 158,935.13

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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.