Home / 282,639.65-390,064.41-161,818.83

Finding the Fourth Proportional to 282,639.65, 390,064.41 and 161,818.83

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Solution

The fourth proportional to 282,639.65, 390,064.41 and 161,818.83 is: 223,322.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,639.65 : 390,064.41 = 161,818.83 : x
  2. Step 2: Convert to fraction form
    282,639.65/390,064.41 = 161,818.83/x
  3. Step 3: Cross multiply
    282,639.65x = 390,064.41 × 161,818.83
  4. Step 4: Simplify right side
    282,639.65x = 63,119,766,450.84
  5. Step 5: Solve for x
    x = 63,119,766,450.84/282,639.65
  6. Step 6: Final answer
    x = 223,322.41

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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.