Home / 219,132.36-328,747.80-69,381.60

Finding the Fourth Proportional to 219,132.36, 328,747.80 and 69,381.60

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Solution

The fourth proportional to 219,132.36, 328,747.80 and 69,381.60 is: 104,088.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,132.36 : 328,747.80 = 69,381.60 : x
  2. Step 2: Convert to fraction form
    219,132.36/328,747.80 = 69,381.60/x
  3. Step 3: Cross multiply
    219,132.36x = 328,747.80 × 69,381.60
  4. Step 4: Simplify right side
    219,132.36x = 22,809,048,360.48
  5. Step 5: Solve for x
    x = 22,809,048,360.48/219,132.36
  6. Step 6: Final answer
    x = 104,088.00

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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.