Home / 282,326.34-389,613.60-154,999.20

Finding the Fourth Proportional to 282,326.34, 389,613.60 and 154,999.20

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Solution

The fourth proportional to 282,326.34, 389,613.60 and 154,999.20 is: 213,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,326.34 : 389,613.60 = 154,999.20 : x
  2. Step 2: Convert to fraction form
    282,326.34/389,613.60 = 154,999.20/x
  3. Step 3: Cross multiply
    282,326.34x = 389,613.60 × 154,999.20
  4. Step 4: Simplify right side
    282,326.34x = 60,389,796,309.12
  5. Step 5: Solve for x
    x = 60,389,796,309.12/282,326.34
  6. Step 6: Final answer
    x = 213,900.68

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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.