Home / 290,329.04-400,651.08-163,001.68

Finding the Fourth Proportional to 290,329.04, 400,651.08 and 163,001.68

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Solution

The fourth proportional to 290,329.04, 400,651.08 and 163,001.68 is: 224,940.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,329.04 : 400,651.08 = 163,001.68 : x
  2. Step 2: Convert to fraction form
    290,329.04/400,651.08 = 163,001.68/x
  3. Step 3: Cross multiply
    290,329.04x = 400,651.08 × 163,001.68
  4. Step 4: Simplify right side
    290,329.04x = 65,306,799,133.81
  5. Step 5: Solve for x
    x = 65,306,799,133.81/290,329.04
  6. Step 6: Final answer
    x = 224,940.64

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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.