Home / 210,390.91-290,340.53-114,897.61

Finding the Fourth Proportional to 210,390.91, 290,340.53 and 114,897.61

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Solution

The fourth proportional to 210,390.91, 290,340.53 and 114,897.61 is: 158,559.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,390.91 : 290,340.53 = 114,897.61 : x
  2. Step 2: Convert to fraction form
    210,390.91/290,340.53 = 114,897.61/x
  3. Step 3: Cross multiply
    210,390.91x = 290,340.53 × 114,897.61
  4. Step 4: Simplify right side
    210,390.91x = 33,359,432,983.13
  5. Step 5: Solve for x
    x = 33,359,432,983.13/210,390.91
  6. Step 6: Final answer
    x = 158,559.29

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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.