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Finding the Fourth Proportional to 253,072.67, 349,226.57 and 139,888.13

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Solution

The fourth proportional to 253,072.67, 349,226.57 and 139,888.13 is: 193,038.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,072.67 : 349,226.57 = 139,888.13 : x
  2. Step 2: Convert to fraction form
    253,072.67/349,226.57 = 139,888.13/x
  3. Step 3: Cross multiply
    253,072.67x = 349,226.57 × 139,888.13
  4. Step 4: Simplify right side
    253,072.67x = 48,852,650,427.20
  5. Step 5: Solve for x
    x = 48,852,650,427.20/253,072.67
  6. Step 6: Final answer
    x = 193,038.04

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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.