Home / 219,453.40-302,864.34-123,977.62

Finding the Fourth Proportional to 219,453.40, 302,864.34 and 123,977.62

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Solution

The fourth proportional to 219,453.40, 302,864.34 and 123,977.62 is: 171,099.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,453.40 : 302,864.34 = 123,977.62 : x
  2. Step 2: Convert to fraction form
    219,453.40/302,864.34 = 123,977.62/x
  3. Step 3: Cross multiply
    219,453.40x = 302,864.34 × 123,977.62
  4. Step 4: Simplify right side
    219,453.40x = 37,548,400,056.07
  5. Step 5: Solve for x
    x = 37,548,400,056.07/219,453.40
  6. Step 6: Final answer
    x = 171,099.65

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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.