Home / 256,488.93-384,739.89-121,521.36

Finding the Fourth Proportional to 256,488.93, 384,739.89 and 121,521.36

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Solution

The fourth proportional to 256,488.93, 384,739.89 and 121,521.36 is: 182,285.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,488.93 : 384,739.89 = 121,521.36 : x
  2. Step 2: Convert to fraction form
    256,488.93/384,739.89 = 121,521.36/x
  3. Step 3: Cross multiply
    256,488.93x = 384,739.89 × 121,521.36
  4. Step 4: Simplify right side
    256,488.93x = 46,754,114,679.05
  5. Step 5: Solve for x
    x = 46,754,114,679.05/256,488.93
  6. Step 6: Final answer
    x = 182,285.12

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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.