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Finding the Fourth Proportional to 282,857.52, 390,340.44 and 210,583.56

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Solution

The fourth proportional to 282,857.52, 390,340.44 and 210,583.56 is: 290,603.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,857.52 : 390,340.44 = 210,583.56 : x
  2. Step 2: Convert to fraction form
    282,857.52/390,340.44 = 210,583.56/x
  3. Step 3: Cross multiply
    282,857.52x = 390,340.44 × 210,583.56
  4. Step 4: Simplify right side
    282,857.52x = 82,199,279,467.17
  5. Step 5: Solve for x
    x = 82,199,279,467.17/282,857.52
  6. Step 6: Final answer
    x = 290,603.13

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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.