Home / 289,129.64-433,611.21-99,582.35

Finding the Fourth Proportional to 289,129.64, 433,611.21 and 99,582.35

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Solution

The fourth proportional to 289,129.64, 433,611.21 and 99,582.35 is: 149,344.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,129.64 : 433,611.21 = 99,582.35 : x
  2. Step 2: Convert to fraction form
    289,129.64/433,611.21 = 99,582.35/x
  3. Step 3: Cross multiply
    289,129.64x = 433,611.21 × 99,582.35
  4. Step 4: Simplify right side
    289,129.64x = 43,180,023,278.14
  5. Step 5: Solve for x
    x = 43,180,023,278.14/289,129.64
  6. Step 6: Final answer
    x = 149,344.85

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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.