Home / 312,851.42-469,416.68-144,281.26

Finding the Fourth Proportional to 312,851.42, 469,416.68 and 144,281.26

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Solution

The fourth proportional to 312,851.42, 469,416.68 and 144,281.26 is: 216,486.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,851.42 : 469,416.68 = 144,281.26 : x
  2. Step 2: Convert to fraction form
    312,851.42/469,416.68 = 144,281.26/x
  3. Step 3: Cross multiply
    312,851.42x = 469,416.68 × 144,281.26
  4. Step 4: Simplify right side
    312,851.42x = 67,728,026,986.93
  5. Step 5: Solve for x
    x = 67,728,026,986.93/312,851.42
  6. Step 6: Final answer
    x = 216,486.24

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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.