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Finding the Fourth Proportional to 304,352.30, 420,140.70 and 181,887.89

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Solution

The fourth proportional to 304,352.30, 420,140.70 and 181,887.89 is: 251,085.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,352.30 : 420,140.70 = 181,887.89 : x
  2. Step 2: Convert to fraction form
    304,352.30/420,140.70 = 181,887.89/x
  3. Step 3: Cross multiply
    304,352.30x = 420,140.70 × 181,887.89
  4. Step 4: Simplify right side
    304,352.30x = 76,418,503,325.42
  5. Step 5: Solve for x
    x = 76,418,503,325.42/304,352.30
  6. Step 6: Final answer
    x = 251,085.68

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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.