Home / 289,729.98-434,337.37-109,690.06

Finding the Fourth Proportional to 289,729.98, 434,337.37 and 109,690.06

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Solution

The fourth proportional to 289,729.98, 434,337.37 and 109,690.06 is: 164,437.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,729.98 : 434,337.37 = 109,690.06 : x
  2. Step 2: Convert to fraction form
    289,729.98/434,337.37 = 109,690.06/x
  3. Step 3: Cross multiply
    289,729.98x = 434,337.37 × 109,690.06
  4. Step 4: Simplify right side
    289,729.98x = 47,642,492,175.54
  5. Step 5: Solve for x
    x = 47,642,492,175.54/289,729.98
  6. Step 6: Final answer
    x = 164,437.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.