Home / 388,450.23-536,144.03-261,052.01

Finding the Fourth Proportional to 388,450.23, 536,144.03 and 261,052.01

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Solution

The fourth proportional to 388,450.23, 536,144.03 and 261,052.01 is: 360,307.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,450.23 : 536,144.03 = 261,052.01 : x
  2. Step 2: Convert to fraction form
    388,450.23/536,144.03 = 261,052.01/x
  3. Step 3: Cross multiply
    388,450.23x = 536,144.03 × 261,052.01
  4. Step 4: Simplify right side
    388,450.23x = 139,961,478,673.99
  5. Step 5: Solve for x
    x = 139,961,478,673.99/388,450.23
  6. Step 6: Final answer
    x = 360,307.36

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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.