Home / 388,303.07-582,720.48-135,583.47

Finding the Fourth Proportional to 388,303.07, 582,720.48 and 135,583.47

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Solution

The fourth proportional to 388,303.07, 582,720.48 and 135,583.47 is: 203,468.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,303.07 : 582,720.48 = 135,583.47 : x
  2. Step 2: Convert to fraction form
    388,303.07/582,720.48 = 135,583.47/x
  3. Step 3: Cross multiply
    388,303.07x = 582,720.48 × 135,583.47
  4. Step 4: Simplify right side
    388,303.07x = 79,007,264,718.47
  5. Step 5: Solve for x
    x = 79,007,264,718.47/388,303.07
  6. Step 6: Final answer
    x = 203,468.04

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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.