Home / 211,517.02-291,892.71-130,928.50

Finding the Fourth Proportional to 211,517.02, 291,892.71 and 130,928.50

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Solution

The fourth proportional to 211,517.02, 291,892.71 and 130,928.50 is: 180,680.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,517.02 : 291,892.71 = 130,928.50 : x
  2. Step 2: Convert to fraction form
    211,517.02/291,892.71 = 130,928.50/x
  3. Step 3: Cross multiply
    211,517.02x = 291,892.71 × 130,928.50
  4. Step 4: Simplify right side
    211,517.02x = 38,217,074,681.24
  5. Step 5: Solve for x
    x = 38,217,074,681.24/211,517.02
  6. Step 6: Final answer
    x = 180,680.85

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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.