Home / 330,554.83-455,929.35-303,417.07

Finding the Fourth Proportional to 330,554.83, 455,929.35 and 303,417.07

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Solution

The fourth proportional to 330,554.83, 455,929.35 and 303,417.07 is: 418,498.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,554.83 : 455,929.35 = 303,417.07 : x
  2. Step 2: Convert to fraction form
    330,554.83/455,929.35 = 303,417.07/x
  3. Step 3: Cross multiply
    330,554.83x = 455,929.35 × 303,417.07
  4. Step 4: Simplify right side
    330,554.83x = 138,336,747,504.00
  5. Step 5: Solve for x
    x = 138,336,747,504.00/330,554.83
  6. Step 6: Final answer
    x = 418,498.64

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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.