Home / 356,935.68-492,488.64-213,641.28

Finding the Fourth Proportional to 356,935.68, 492,488.64 and 213,641.28

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Solution

The fourth proportional to 356,935.68, 492,488.64 and 213,641.28 is: 294,775.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,935.68 : 492,488.64 = 213,641.28 : x
  2. Step 2: Convert to fraction form
    356,935.68/492,488.64 = 213,641.28/x
  3. Step 3: Cross multiply
    356,935.68x = 492,488.64 × 213,641.28
  4. Step 4: Simplify right side
    356,935.68x = 105,215,903,435.06
  5. Step 5: Solve for x
    x = 105,215,903,435.06/356,935.68
  6. Step 6: Final answer
    x = 294,775.53

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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.