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Finding the Fourth Proportional to 553,860.36, 830,790.45 and 133,136.22

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Solution

The fourth proportional to 553,860.36, 830,790.45 and 133,136.22 is: 199,704.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,860.36 : 830,790.45 = 133,136.22 : x
  2. Step 2: Convert to fraction form
    553,860.36/830,790.45 = 133,136.22/x
  3. Step 3: Cross multiply
    553,860.36x = 830,790.45 × 133,136.22
  4. Step 4: Simplify right side
    553,860.36x = 110,608,300,125.10
  5. Step 5: Solve for x
    x = 110,608,300,125.10/553,860.36
  6. Step 6: Final answer
    x = 199,704.31

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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.