Home / 219,285.77-302,531.00-137,579.40

Finding the Fourth Proportional to 219,285.77, 302,531.00 and 137,579.40

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Solution

The fourth proportional to 219,285.77, 302,531.00 and 137,579.40 is: 189,807.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,285.77 : 302,531.00 = 137,579.40 : x
  2. Step 2: Convert to fraction form
    219,285.77/302,531.00 = 137,579.40/x
  3. Step 3: Cross multiply
    219,285.77x = 302,531.00 × 137,579.40
  4. Step 4: Simplify right side
    219,285.77x = 41,622,032,773.50
  5. Step 5: Solve for x
    x = 41,622,032,773.50/219,285.77
  6. Step 6: Final answer
    x = 189,807.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.