Home / 458,977.20-688,271.40-222,392.40

Finding the Fourth Proportional to 458,977.20, 688,271.40 and 222,392.40

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Solution

The fourth proportional to 458,977.20, 688,271.40 and 222,392.40 is: 333,494.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,977.20 : 688,271.40 = 222,392.40 : x
  2. Step 2: Convert to fraction form
    458,977.20/688,271.40 = 222,392.40/x
  3. Step 3: Cross multiply
    458,977.20x = 688,271.40 × 222,392.40
  4. Step 4: Simplify right side
    458,977.20x = 153,066,328,497.36
  5. Step 5: Solve for x
    x = 153,066,328,497.36/458,977.20
  6. Step 6: Final answer
    x = 333,494.41

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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.