Home / 219,136.36-328,753.80-69,385.60

Finding the Fourth Proportional to 219,136.36, 328,753.80 and 69,385.60

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Solution

The fourth proportional to 219,136.36, 328,753.80 and 69,385.60 is: 104,094.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,136.36 : 328,753.80 = 69,385.60 : x
  2. Step 2: Convert to fraction form
    219,136.36/328,753.80 = 69,385.60/x
  3. Step 3: Cross multiply
    219,136.36x = 328,753.80 × 69,385.60
  4. Step 4: Simplify right side
    219,136.36x = 22,810,779,665.28
  5. Step 5: Solve for x
    x = 22,810,779,665.28/219,136.36
  6. Step 6: Final answer
    x = 104,094.00

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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.