Home / 212,897.40-318,908.70-146,412.60

Finding the Fourth Proportional to 212,897.40, 318,908.70 and 146,412.60

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Solution

The fourth proportional to 212,897.40, 318,908.70 and 146,412.60 is: 219,318.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,897.40 : 318,908.70 = 146,412.60 : x
  2. Step 2: Convert to fraction form
    212,897.40/318,908.70 = 146,412.60/x
  3. Step 3: Cross multiply
    212,897.40x = 318,908.70 × 146,412.60
  4. Step 4: Simplify right side
    212,897.40x = 46,692,251,929.62
  5. Step 5: Solve for x
    x = 46,692,251,929.62/212,897.40
  6. Step 6: Final answer
    x = 219,318.09

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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.