Home / 289,322.92-433,962.78-89,644.84

Finding the Fourth Proportional to 289,322.92, 433,962.78 and 89,644.84

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Solution

The fourth proportional to 289,322.92, 433,962.78 and 89,644.84 is: 134,460.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,322.92 : 433,962.78 = 89,644.84 : x
  2. Step 2: Convert to fraction form
    289,322.92/433,962.78 = 89,644.84/x
  3. Step 3: Cross multiply
    289,322.92x = 433,962.78 × 89,644.84
  4. Step 4: Simplify right side
    289,322.92x = 38,902,523,979.06
  5. Step 5: Solve for x
    x = 38,902,523,979.06/289,322.92
  6. Step 6: Final answer
    x = 134,460.57

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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.