Home / 200,430.46-276,461.13-128,900.98

Finding the Fourth Proportional to 200,430.46, 276,461.13 and 128,900.98

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Solution

The fourth proportional to 200,430.46, 276,461.13 and 128,900.98 is: 177,797.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,430.46 : 276,461.13 = 128,900.98 : x
  2. Step 2: Convert to fraction form
    200,430.46/276,461.13 = 128,900.98/x
  3. Step 3: Cross multiply
    200,430.46x = 276,461.13 × 128,900.98
  4. Step 4: Simplify right side
    200,430.46x = 35,636,110,588.91
  5. Step 5: Solve for x
    x = 35,636,110,588.91/200,430.46
  6. Step 6: Final answer
    x = 177,797.88

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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.