Home / 438,211.45-657,389.81-153,828.22

Finding the Fourth Proportional to 438,211.45, 657,389.81 and 153,828.22

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Solution

The fourth proportional to 438,211.45, 657,389.81 and 153,828.22 is: 230,767.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,211.45 : 657,389.81 = 153,828.22 : x
  2. Step 2: Convert to fraction form
    438,211.45/657,389.81 = 153,828.22/x
  3. Step 3: Cross multiply
    438,211.45x = 657,389.81 × 153,828.22
  4. Step 4: Simplify right side
    438,211.45x = 101,125,104,318.44
  5. Step 5: Solve for x
    x = 101,125,104,318.44/438,211.45
  6. Step 6: Final answer
    x = 230,767.83

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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.