Home / 420,148.80-579,787.77-229,150.80

Finding the Fourth Proportional to 420,148.80, 579,787.77 and 229,150.80

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Solution

The fourth proportional to 420,148.80, 579,787.77 and 229,150.80 is: 316,218.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,148.80 : 579,787.77 = 229,150.80 : x
  2. Step 2: Convert to fraction form
    420,148.80/579,787.77 = 229,150.80/x
  3. Step 3: Cross multiply
    420,148.80x = 579,787.77 × 229,150.80
  4. Step 4: Simplify right side
    420,148.80x = 132,858,831,325.72
  5. Step 5: Solve for x
    x = 132,858,831,325.72/420,148.80
  6. Step 6: Final answer
    x = 316,218.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.