Home / 213,897.28-321,161.32-119,312.26

Finding the Fourth Proportional to 213,897.28, 321,161.32 and 119,312.26

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Solution

The fourth proportional to 213,897.28, 321,161.32 and 119,312.26 is: 179,144.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,897.28 : 321,161.32 = 119,312.26 : x
  2. Step 2: Convert to fraction form
    213,897.28/321,161.32 = 119,312.26/x
  3. Step 3: Cross multiply
    213,897.28x = 321,161.32 × 119,312.26
  4. Step 4: Simplify right side
    213,897.28x = 38,318,482,913.78
  5. Step 5: Solve for x
    x = 38,318,482,913.78/213,897.28
  6. Step 6: Final answer
    x = 179,144.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.