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Finding the Fourth Proportional to 307,989.01, 425,028.09 and 180,666.73

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Solution

The fourth proportional to 307,989.01, 425,028.09 and 180,666.73 is: 249,322.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,989.01 : 425,028.09 = 180,666.73 : x
  2. Step 2: Convert to fraction form
    307,989.01/425,028.09 = 180,666.73/x
  3. Step 3: Cross multiply
    307,989.01x = 425,028.09 × 180,666.73
  4. Step 4: Simplify right side
    307,989.01x = 76,788,435,178.45
  5. Step 5: Solve for x
    x = 76,788,435,178.45/307,989.01
  6. Step 6: Final answer
    x = 249,322.00

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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.