Home / 291,798.40-437,738.55-102,215.36

Finding the Fourth Proportional to 291,798.40, 437,738.55 and 102,215.36

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Solution

The fourth proportional to 291,798.40, 437,738.55 and 102,215.36 is: 153,337.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,798.40 : 437,738.55 = 102,215.36 : x
  2. Step 2: Convert to fraction form
    291,798.40/437,738.55 = 102,215.36/x
  3. Step 3: Cross multiply
    291,798.40x = 437,738.55 × 102,215.36
  4. Step 4: Simplify right side
    291,798.40x = 44,743,603,528.99
  5. Step 5: Solve for x
    x = 44,743,603,528.99/291,798.40
  6. Step 6: Final answer
    x = 153,337.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.