Home / 212,841.19-319,252.56-52,913.78

Finding the Fourth Proportional to 212,841.19, 319,252.56 and 52,913.78

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Solution

The fourth proportional to 212,841.19, 319,252.56 and 52,913.78 is: 79,368.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,841.19 : 319,252.56 = 52,913.78 : x
  2. Step 2: Convert to fraction form
    212,841.19/319,252.56 = 52,913.78/x
  3. Step 3: Cross multiply
    212,841.19x = 319,252.56 × 52,913.78
  4. Step 4: Simplify right side
    212,841.19x = 16,892,859,724.28
  5. Step 5: Solve for x
    x = 16,892,859,724.28/212,841.19
  6. Step 6: Final answer
    x = 79,368.38

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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.