Home / 393,289.63-542,722.28-240,584.18

Finding the Fourth Proportional to 393,289.63, 542,722.28 and 240,584.18

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Solution

The fourth proportional to 393,289.63, 542,722.28 and 240,584.18 is: 331,995.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,289.63 : 542,722.28 = 240,584.18 : x
  2. Step 2: Convert to fraction form
    393,289.63/542,722.28 = 240,584.18/x
  3. Step 3: Cross multiply
    393,289.63x = 542,722.28 × 240,584.18
  4. Step 4: Simplify right side
    393,289.63x = 130,570,390,785.00
  5. Step 5: Solve for x
    x = 130,570,390,785.00/393,289.63
  6. Step 6: Final answer
    x = 331,995.51

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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.