Home / 282,644.07-390,047.63-161,784.75

Finding the Fourth Proportional to 282,644.07, 390,047.63 and 161,784.75

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Solution

The fourth proportional to 282,644.07, 390,047.63 and 161,784.75 is: 223,262.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,644.07 : 390,047.63 = 161,784.75 : x
  2. Step 2: Convert to fraction form
    282,644.07/390,047.63 = 161,784.75/x
  3. Step 3: Cross multiply
    282,644.07x = 390,047.63 × 161,784.75
  4. Step 4: Simplify right side
    282,644.07x = 63,103,757,498.72
  5. Step 5: Solve for x
    x = 63,103,757,498.72/282,644.07
  6. Step 6: Final answer
    x = 223,262.27

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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.