Home / 389,828.36-584,340.78-149,877.20

Finding the Fourth Proportional to 389,828.36, 584,340.78 and 149,877.20

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Solution

The fourth proportional to 389,828.36, 584,340.78 and 149,877.20 is: 224,661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,828.36 : 584,340.78 = 149,877.20 : x
  2. Step 2: Convert to fraction form
    389,828.36/584,340.78 = 149,877.20/x
  3. Step 3: Cross multiply
    389,828.36x = 584,340.78 × 149,877.20
  4. Step 4: Simplify right side
    389,828.36x = 87,579,359,952.22
  5. Step 5: Solve for x
    x = 87,579,359,952.22/389,828.36
  6. Step 6: Final answer
    x = 224,661.34

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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.