Home / 210,496.08-290,488.77-115,008.69

Finding the Fourth Proportional to 210,496.08, 290,488.77 and 115,008.69

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Solution

The fourth proportional to 210,496.08, 290,488.77 and 115,008.69 is: 158,714.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,496.08 : 290,488.77 = 115,008.69 : x
  2. Step 2: Convert to fraction form
    210,496.08/290,488.77 = 115,008.69/x
  3. Step 3: Cross multiply
    210,496.08x = 290,488.77 × 115,008.69
  4. Step 4: Simplify right side
    210,496.08x = 33,408,732,897.41
  5. Step 5: Solve for x
    x = 33,408,732,897.41/210,496.08
  6. Step 6: Final answer
    x = 158,714.28

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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.