Home / 210,833.30-290,937.57-115,320.98

Finding the Fourth Proportional to 210,833.30, 290,937.57 and 115,320.98

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Solution

The fourth proportional to 210,833.30, 290,937.57 and 115,320.98 is: 159,136.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,833.30 : 290,937.57 = 115,320.98 : x
  2. Step 2: Convert to fraction form
    210,833.30/290,937.57 = 115,320.98/x
  3. Step 3: Cross multiply
    210,833.30x = 290,937.57 × 115,320.98
  4. Step 4: Simplify right side
    210,833.30x = 33,551,205,691.22
  5. Step 5: Solve for x
    x = 33,551,205,691.22/210,833.30
  6. Step 6: Final answer
    x = 159,136.18

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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.