Home / 456,746.40-685,139.04-141,209.28

Finding the Fourth Proportional to 456,746.40, 685,139.04 and 141,209.28

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Solution

The fourth proportional to 456,746.40, 685,139.04 and 141,209.28 is: 211,819.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,746.40 : 685,139.04 = 141,209.28 : x
  2. Step 2: Convert to fraction form
    456,746.40/685,139.04 = 141,209.28/x
  3. Step 3: Cross multiply
    456,746.40x = 685,139.04 × 141,209.28
  4. Step 4: Simplify right side
    456,746.40x = 96,747,990,538.29
  5. Step 5: Solve for x
    x = 96,747,990,538.29/456,746.40
  6. Step 6: Final answer
    x = 211,819.93

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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.