Home / 219,525.42-302,903.82-138,896.40

Finding the Fourth Proportional to 219,525.42, 302,903.82 and 138,896.40

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Solution

The fourth proportional to 219,525.42, 302,903.82 and 138,896.40 is: 191,650.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,525.42 : 302,903.82 = 138,896.40 : x
  2. Step 2: Convert to fraction form
    219,525.42/302,903.82 = 138,896.40/x
  3. Step 3: Cross multiply
    219,525.42x = 302,903.82 × 138,896.40
  4. Step 4: Simplify right side
    219,525.42x = 42,072,250,144.25
  5. Step 5: Solve for x
    x = 42,072,250,144.25/219,525.42
  6. Step 6: Final answer
    x = 191,650.93

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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.