Home / 388,510.18-582,848.64-220,111.18

Finding the Fourth Proportional to 388,510.18, 582,848.64 and 220,111.18

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Solution

The fourth proportional to 388,510.18, 582,848.64 and 220,111.18 is: 330,214.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,510.18 : 582,848.64 = 220,111.18 : x
  2. Step 2: Convert to fraction form
    388,510.18/582,848.64 = 220,111.18/x
  3. Step 3: Cross multiply
    388,510.18x = 582,848.64 × 220,111.18
  4. Step 4: Simplify right side
    388,510.18x = 128,291,501,911.80
  5. Step 5: Solve for x
    x = 128,291,501,911.80/388,510.18
  6. Step 6: Final answer
    x = 330,214.00

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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.