Home / 258,613.02-356,890.32-143,900.82

Finding the Fourth Proportional to 258,613.02, 356,890.32 and 143,900.82

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Solution

The fourth proportional to 258,613.02, 356,890.32 and 143,900.82 is: 198,585.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,613.02 : 356,890.32 = 143,900.82 : x
  2. Step 2: Convert to fraction form
    258,613.02/356,890.32 = 143,900.82/x
  3. Step 3: Cross multiply
    258,613.02x = 356,890.32 × 143,900.82
  4. Step 4: Simplify right side
    258,613.02x = 51,356,809,698.06
  5. Step 5: Solve for x
    x = 51,356,809,698.06/258,613.02
  6. Step 6: Final answer
    x = 198,585.55

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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.