Home / 282,427.02-390,002.45-210,682.49

Finding the Fourth Proportional to 282,427.02, 390,002.45 and 210,682.49

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Solution

The fourth proportional to 282,427.02, 390,002.45 and 210,682.49 is: 290,930.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,427.02 : 390,002.45 = 210,682.49 : x
  2. Step 2: Convert to fraction form
    282,427.02/390,002.45 = 210,682.49/x
  3. Step 3: Cross multiply
    282,427.02x = 390,002.45 × 210,682.49
  4. Step 4: Simplify right side
    282,427.02x = 82,166,684,268.68
  5. Step 5: Solve for x
    x = 82,166,684,268.68/282,427.02
  6. Step 6: Final answer
    x = 290,930.68

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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.