Home / 312,858.42-469,427.18-144,288.26

Finding the Fourth Proportional to 312,858.42, 469,427.18 and 144,288.26

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Solution

The fourth proportional to 312,858.42, 469,427.18 and 144,288.26 is: 216,496.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,858.42 : 469,427.18 = 144,288.26 : x
  2. Step 2: Convert to fraction form
    312,858.42/469,427.18 = 144,288.26/x
  3. Step 3: Cross multiply
    312,858.42x = 469,427.18 × 144,288.26
  4. Step 4: Simplify right side
    312,858.42x = 67,732,830,998.91
  5. Step 5: Solve for x
    x = 67,732,830,998.91/312,858.42
  6. Step 6: Final answer
    x = 216,496.75

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1.5x scale

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.