Home / 411,946.60-618,438.30-222,557.80

Finding the Fourth Proportional to 411,946.60, 618,438.30 and 222,557.80

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Solution

The fourth proportional to 411,946.60, 618,438.30 and 222,557.80 is: 334,116.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,946.60 : 618,438.30 = 222,557.80 : x
  2. Step 2: Convert to fraction form
    411,946.60/618,438.30 = 222,557.80/x
  3. Step 3: Cross multiply
    411,946.60x = 618,438.30 × 222,557.80
  4. Step 4: Simplify right side
    411,946.60x = 137,638,267,483.74
  5. Step 5: Solve for x
    x = 137,638,267,483.74/411,946.60
  6. Step 6: Final answer
    x = 334,116.77

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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.