Home / 411,288.21-616,703.07-126,898.02

Finding the Fourth Proportional to 411,288.21, 616,703.07 and 126,898.02

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Solution

The fourth proportional to 411,288.21, 616,703.07 and 126,898.02 is: 190,276.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,288.21 : 616,703.07 = 126,898.02 : x
  2. Step 2: Convert to fraction form
    411,288.21/616,703.07 = 126,898.02/x
  3. Step 3: Cross multiply
    411,288.21x = 616,703.07 × 126,898.02
  4. Step 4: Simplify right side
    411,288.21x = 78,258,398,510.92
  5. Step 5: Solve for x
    x = 78,258,398,510.92/411,288.21
  6. Step 6: Final answer
    x = 190,276.30

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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.