Home / 282,431.02-390,007.97-210,686.49

Finding the Fourth Proportional to 282,431.02, 390,007.97 and 210,686.49

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Solution

The fourth proportional to 282,431.02, 390,007.97 and 210,686.49 is: 290,936.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,431.02 : 390,007.97 = 210,686.49 : x
  2. Step 2: Convert to fraction form
    282,431.02/390,007.97 = 210,686.49/x
  3. Step 3: Cross multiply
    282,431.02x = 390,007.97 × 210,686.49
  4. Step 4: Simplify right side
    282,431.02x = 82,169,410,271.33
  5. Step 5: Solve for x
    x = 82,169,410,271.33/282,431.02
  6. Step 6: Final answer
    x = 290,936.21

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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.