Home / 289,043.70-433,557.45-131,271.90

Finding the Fourth Proportional to 289,043.70, 433,557.45 and 131,271.90

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Solution

The fourth proportional to 289,043.70, 433,557.45 and 131,271.90 is: 196,904.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,043.70 : 433,557.45 = 131,271.90 : x
  2. Step 2: Convert to fraction form
    289,043.70/433,557.45 = 131,271.90/x
  3. Step 3: Cross multiply
    289,043.70x = 433,557.45 × 131,271.90
  4. Step 4: Simplify right side
    289,043.70x = 56,913,910,220.66
  5. Step 5: Solve for x
    x = 56,913,910,220.66/289,043.70
  6. Step 6: Final answer
    x = 196,904.17

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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.