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Finding the Fourth Proportional to 210,829.00, 290,950.90 and 115,335.70

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Solution

The fourth proportional to 210,829.00, 290,950.90 and 115,335.70 is: 159,167.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,829.00 : 290,950.90 = 115,335.70 : x
  2. Step 2: Convert to fraction form
    210,829.00/290,950.90 = 115,335.70/x
  3. Step 3: Cross multiply
    210,829.00x = 290,950.90 × 115,335.70
  4. Step 4: Simplify right side
    210,829.00x = 33,557,025,133.92
  5. Step 5: Solve for x
    x = 33,557,025,133.92/210,829.00
  6. Step 6: Final answer
    x = 159,167.03

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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.