Home / 388,002.36-535,399.92-218,232.84

Finding the Fourth Proportional to 388,002.36, 535,399.92 and 218,232.84

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Solution

The fourth proportional to 388,002.36, 535,399.92 and 218,232.84 is: 301,136.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,002.36 : 535,399.92 = 218,232.84 : x
  2. Step 2: Convert to fraction form
    388,002.36/535,399.92 = 218,232.84/x
  3. Step 3: Cross multiply
    388,002.36x = 535,399.92 × 218,232.84
  4. Step 4: Simplify right side
    388,002.36x = 116,841,845,077.37
  5. Step 5: Solve for x
    x = 116,841,845,077.37/388,002.36
  6. Step 6: Final answer
    x = 301,136.94

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1.5x scale

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.