Home / 253,403.30-349,692.09-145,973

Finding the Fourth Proportional to 253,403.30, 349,692.09 and 145,973

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Solution

The fourth proportional to 253,403.30, 349,692.09 and 145,973 is: 201,440.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,403.30 : 349,692.09 = 145,973 : x
  2. Step 2: Convert to fraction form
    253,403.30/349,692.09 = 145,973/x
  3. Step 3: Cross multiply
    253,403.30x = 349,692.09 × 145,973
  4. Step 4: Simplify right side
    253,403.30x = 51,045,603,453.57
  5. Step 5: Solve for x
    x = 51,045,603,453.57/253,403.30
  6. Step 6: Final answer
    x = 201,440.17

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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.