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Finding the Fourth Proportional to 219,003.60, 328,505.40 and 124,136.40

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Solution

The fourth proportional to 219,003.60, 328,505.40 and 124,136.40 is: 186,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,003.60 : 328,505.40 = 124,136.40 : x
  2. Step 2: Convert to fraction form
    219,003.60/328,505.40 = 124,136.40/x
  3. Step 3: Cross multiply
    219,003.60x = 328,505.40 × 124,136.40
  4. Step 4: Simplify right side
    219,003.60x = 40,779,477,736.56
  5. Step 5: Solve for x
    x = 40,779,477,736.56/219,003.60
  6. Step 6: Final answer
    x = 186,204.60

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1.5x scale

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.