Home / 253,088-349,231.12-139,895.36

Finding the Fourth Proportional to 253,088, 349,231.12 and 139,895.36

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Solution

The fourth proportional to 253,088, 349,231.12 and 139,895.36 is: 193,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,088 : 349,231.12 = 139,895.36 : x
  2. Step 2: Convert to fraction form
    253,088/349,231.12 = 139,895.36/x
  3. Step 3: Cross multiply
    253,088x = 349,231.12 × 139,895.36
  4. Step 4: Simplify right side
    253,088x = 48,855,813,255.60
  5. Step 5: Solve for x
    x = 48,855,813,255.60/253,088
  6. Step 6: Final answer
    x = 193,038.84

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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.