Home / 320,860.14-442,465.82-213,434.70

Finding the Fourth Proportional to 320,860.14, 442,465.82 and 213,434.70

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Solution

The fourth proportional to 320,860.14, 442,465.82 and 213,434.70 is: 294,326.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,860.14 : 442,465.82 = 213,434.70 : x
  2. Step 2: Convert to fraction form
    320,860.14/442,465.82 = 213,434.70/x
  3. Step 3: Cross multiply
    320,860.14x = 442,465.82 × 213,434.70
  4. Step 4: Simplify right side
    320,860.14x = 94,437,559,551.95
  5. Step 5: Solve for x
    x = 94,437,559,551.95/320,860.14
  6. Step 6: Final answer
    x = 294,326.24

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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.