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Finding the Fourth Proportional to 254,624.90, 351,384.84 and 139,901.69

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Solution

The fourth proportional to 254,624.90, 351,384.84 and 139,901.69 is: 193,065.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,624.90 : 351,384.84 = 139,901.69 : x
  2. Step 2: Convert to fraction form
    254,624.90/351,384.84 = 139,901.69/x
  3. Step 3: Cross multiply
    254,624.90x = 351,384.84 × 139,901.69
  4. Step 4: Simplify right side
    254,624.90x = 49,159,333,834.84
  5. Step 5: Solve for x
    x = 49,159,333,834.84/254,624.90
  6. Step 6: Final answer
    x = 193,065.70

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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.