Home / 356,380.16-491,804.58-213,140.18

Finding the Fourth Proportional to 356,380.16, 491,804.58 and 213,140.18

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Solution

The fourth proportional to 356,380.16, 491,804.58 and 213,140.18 is: 294,133.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,380.16 : 491,804.58 = 213,140.18 : x
  2. Step 2: Convert to fraction form
    356,380.16/491,804.58 = 213,140.18/x
  3. Step 3: Cross multiply
    356,380.16x = 491,804.58 × 213,140.18
  4. Step 4: Simplify right side
    356,380.16x = 104,823,316,706.02
  5. Step 5: Solve for x
    x = 104,823,316,706.02/356,380.16
  6. Step 6: Final answer
    x = 294,133.42

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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.