Home / 421,911.93-582,216.09-230,888.40

Finding the Fourth Proportional to 421,911.93, 582,216.09 and 230,888.40

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Solution

The fourth proportional to 421,911.93, 582,216.09 and 230,888.40 is: 318,613.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,911.93 : 582,216.09 = 230,888.40 : x
  2. Step 2: Convert to fraction form
    421,911.93/582,216.09 = 230,888.40/x
  3. Step 3: Cross multiply
    421,911.93x = 582,216.09 × 230,888.40
  4. Step 4: Simplify right side
    421,911.93x = 134,426,941,474.36
  5. Step 5: Solve for x
    x = 134,426,941,474.36/421,911.93
  6. Step 6: Final answer
    x = 318,613.75

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1.5x scale

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.