Home / 438,206.52-657,382.41-153,823.30

Finding the Fourth Proportional to 438,206.52, 657,382.41 and 153,823.30

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Solution

The fourth proportional to 438,206.52, 657,382.41 and 153,823.30 is: 230,760.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,206.52 : 657,382.41 = 153,823.30 : x
  2. Step 2: Convert to fraction form
    438,206.52/657,382.41 = 153,823.30/x
  3. Step 3: Cross multiply
    438,206.52x = 657,382.41 × 153,823.30
  4. Step 4: Simplify right side
    438,206.52x = 101,120,731,668.15
  5. Step 5: Solve for x
    x = 101,120,731,668.15/438,206.52
  6. Step 6: Final answer
    x = 230,760.45

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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.