Home / 388,277.20-582,637.74-210,798.64

Finding the Fourth Proportional to 388,277.20, 582,637.74 and 210,798.64

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Solution

The fourth proportional to 388,277.20, 582,637.74 and 210,798.64 is: 316,318.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,277.20 : 582,637.74 = 210,798.64 : x
  2. Step 2: Convert to fraction form
    388,277.20/582,637.74 = 210,798.64/x
  3. Step 3: Cross multiply
    388,277.20x = 582,637.74 × 210,798.64
  4. Step 4: Simplify right side
    388,277.20x = 122,819,243,204.67
  5. Step 5: Solve for x
    x = 122,819,243,204.67/388,277.20
  6. Step 6: Final answer
    x = 316,318.45

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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.