Home / 388,510.55-582,848.75-220,111.55

Finding the Fourth Proportional to 388,510.55, 582,848.75 and 220,111.55

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Solution

The fourth proportional to 388,510.55, 582,848.75 and 220,111.55 is: 330,214.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,510.55 : 582,848.75 = 220,111.55 : x
  2. Step 2: Convert to fraction form
    388,510.55/582,848.75 = 220,111.55/x
  3. Step 3: Cross multiply
    388,510.55x = 582,848.75 × 220,111.55
  4. Step 4: Simplify right side
    388,510.55x = 128,291,740,677.51
  5. Step 5: Solve for x
    x = 128,291,740,677.51/388,510.55
  6. Step 6: Final answer
    x = 330,214.30

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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.