Home / 369,022.56-509,239.08-233,128.86

Finding the Fourth Proportional to 369,022.56, 509,239.08 and 233,128.86

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Solution

The fourth proportional to 369,022.56, 509,239.08 and 233,128.86 is: 321,710.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,022.56 : 509,239.08 = 233,128.86 : x
  2. Step 2: Convert to fraction form
    369,022.56/509,239.08 = 233,128.86/x
  3. Step 3: Cross multiply
    369,022.56x = 509,239.08 × 233,128.86
  4. Step 4: Simplify right side
    369,022.56x = 118,718,326,187.85
  5. Step 5: Solve for x
    x = 118,718,326,187.85/369,022.56
  6. Step 6: Final answer
    x = 321,710.21

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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.