Home / 318,276.03-439,194.81-187,433.07

Finding the Fourth Proportional to 318,276.03, 439,194.81 and 187,433.07

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Solution

The fourth proportional to 318,276.03, 439,194.81 and 187,433.07 is: 258,642.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,276.03 : 439,194.81 = 187,433.07 : x
  2. Step 2: Convert to fraction form
    318,276.03/439,194.81 = 187,433.07/x
  3. Step 3: Cross multiply
    318,276.03x = 439,194.81 × 187,433.07
  4. Step 4: Simplify right side
    318,276.03x = 82,319,631,566.37
  5. Step 5: Solve for x
    x = 82,319,631,566.37/318,276.03
  6. Step 6: Final answer
    x = 258,642.26

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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.