Home / 288,621.78-430,818.96-254,533.95

Finding the Fourth Proportional to 288,621.78, 430,818.96 and 254,533.95

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Solution

The fourth proportional to 288,621.78, 430,818.96 and 254,533.95 is: 379,936.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,621.78 : 430,818.96 = 254,533.95 : x
  2. Step 2: Convert to fraction form
    288,621.78/430,818.96 = 254,533.95/x
  3. Step 3: Cross multiply
    288,621.78x = 430,818.96 × 254,533.95
  4. Step 4: Simplify right side
    288,621.78x = 109,658,051,623.69
  5. Step 5: Solve for x
    x = 109,658,051,623.69/288,621.78
  6. Step 6: Final answer
    x = 379,936.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.