Home / 211,327.03-291,661.20-130,780.49

Finding the Fourth Proportional to 211,327.03, 291,661.20 and 130,780.49

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Solution

The fourth proportional to 211,327.03, 291,661.20 and 130,780.49 is: 180,495.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,327.03 : 291,661.20 = 130,780.49 : x
  2. Step 2: Convert to fraction form
    211,327.03/291,661.20 = 130,780.49/x
  3. Step 3: Cross multiply
    211,327.03x = 291,661.20 × 130,780.49
  4. Step 4: Simplify right side
    211,327.03x = 38,143,594,649.99
  5. Step 5: Solve for x
    x = 38,143,594,649.99/211,327.03
  6. Step 6: Final answer
    x = 180,495.58

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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.