Home / 289,036.10-433,600.59-89,309.54

Finding the Fourth Proportional to 289,036.10, 433,600.59 and 89,309.54

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Solution

The fourth proportional to 289,036.10, 433,600.59 and 89,309.54 is: 133,978.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,036.10 : 433,600.59 = 89,309.54 : x
  2. Step 2: Convert to fraction form
    289,036.10/433,600.59 = 89,309.54/x
  3. Step 3: Cross multiply
    289,036.10x = 433,600.59 × 89,309.54
  4. Step 4: Simplify right side
    289,036.10x = 38,724,669,236.63
  5. Step 5: Solve for x
    x = 38,724,669,236.63/289,036.10
  6. Step 6: Final answer
    x = 133,978.66

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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.