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Finding the Fourth Proportional to 211,147.84, 291,273.60 and 130,549.60

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Solution

The fourth proportional to 211,147.84, 291,273.60 and 130,549.60 is: 180,090.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,147.84 : 291,273.60 = 130,549.60 : x
  2. Step 2: Convert to fraction form
    211,147.84/291,273.60 = 130,549.60/x
  3. Step 3: Cross multiply
    211,147.84x = 291,273.60 × 130,549.60
  4. Step 4: Simplify right side
    211,147.84x = 38,025,651,970.56
  5. Step 5: Solve for x
    x = 38,025,651,970.56/211,147.84
  6. Step 6: Final answer
    x = 180,090.18

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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.