Home / 289,985.55-435,089.19-163,768.32

Finding the Fourth Proportional to 289,985.55, 435,089.19 and 163,768.32

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Solution

The fourth proportional to 289,985.55, 435,089.19 and 163,768.32 is: 245,715.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,985.55 : 435,089.19 = 163,768.32 : x
  2. Step 2: Convert to fraction form
    289,985.55/435,089.19 = 163,768.32/x
  3. Step 3: Cross multiply
    289,985.55x = 435,089.19 × 163,768.32
  4. Step 4: Simplify right side
    289,985.55x = 71,253,825,696.46
  5. Step 5: Solve for x
    x = 71,253,825,696.46/289,985.55
  6. Step 6: Final answer
    x = 245,715.09

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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.