Home / 289,023.40-433,535.10-205,042.60

Finding the Fourth Proportional to 289,023.40, 433,535.10 and 205,042.60

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Solution

The fourth proportional to 289,023.40, 433,535.10 and 205,042.60 is: 307,563.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,023.40 : 433,535.10 = 205,042.60 : x
  2. Step 2: Convert to fraction form
    289,023.40/433,535.10 = 205,042.60/x
  3. Step 3: Cross multiply
    289,023.40x = 433,535.10 × 205,042.60
  4. Step 4: Simplify right side
    289,023.40x = 88,893,164,095.26
  5. Step 5: Solve for x
    x = 88,893,164,095.26/289,023.40
  6. Step 6: Final answer
    x = 307,563.90

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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.