Home / 211,322.77-291,655.33-130,776.25

Finding the Fourth Proportional to 211,322.77, 291,655.33 and 130,776.25

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Solution

The fourth proportional to 211,322.77, 291,655.33 and 130,776.25 is: 180,489.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,322.77 : 291,655.33 = 130,776.25 : x
  2. Step 2: Convert to fraction form
    211,322.77/291,655.33 = 130,776.25/x
  3. Step 3: Cross multiply
    211,322.77x = 291,655.33 × 130,776.25
  4. Step 4: Simplify right side
    211,322.77x = 38,141,589,756.02
  5. Step 5: Solve for x
    x = 38,141,589,756.02/211,322.77
  6. Step 6: Final answer
    x = 180,489.73

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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.