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Finding the Fourth Proportional to 253,008, 349,146.36 and 139,828.32

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Solution

The fourth proportional to 253,008, 349,146.36 and 139,828.32 is: 192,960.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,008 : 349,146.36 = 139,828.32 : x
  2. Step 2: Convert to fraction form
    253,008/349,146.36 = 139,828.32/x
  3. Step 3: Cross multiply
    253,008x = 349,146.36 × 139,828.32
  4. Step 4: Simplify right side
    253,008x = 48,820,548,952.92
  5. Step 5: Solve for x
    x = 48,820,548,952.92/253,008
  6. Step 6: Final answer
    x = 192,960.50

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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.