Home / 282,899.45-390,393.86-168,178.32

Finding the Fourth Proportional to 282,899.45, 390,393.86 and 168,178.32

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Solution

The fourth proportional to 282,899.45, 390,393.86 and 168,178.32 is: 232,081.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,899.45 : 390,393.86 = 168,178.32 : x
  2. Step 2: Convert to fraction form
    282,899.45/390,393.86 = 168,178.32/x
  3. Step 3: Cross multiply
    282,899.45x = 390,393.86 × 168,178.32
  4. Step 4: Simplify right side
    282,899.45x = 65,655,783,933.56
  5. Step 5: Solve for x
    x = 65,655,783,933.56/282,899.45
  6. Step 6: Final answer
    x = 232,081.69

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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.