Home / 291,899.20-437,816.40-239,216.80

Finding the Fourth Proportional to 291,899.20, 437,816.40 and 239,216.80

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Solution

The fourth proportional to 291,899.20, 437,816.40 and 239,216.80 is: 358,798.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,899.20 : 437,816.40 = 239,216.80 : x
  2. Step 2: Convert to fraction form
    291,899.20/437,816.40 = 239,216.80/x
  3. Step 3: Cross multiply
    291,899.20x = 437,816.40 × 239,216.80
  4. Step 4: Simplify right side
    291,899.20x = 104,733,038,195.52
  5. Step 5: Solve for x
    x = 104,733,038,195.52/291,899.20
  6. Step 6: Final answer
    x = 358,798.65

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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.