Home / 253,511.08-380,237.40-66,537.16

Finding the Fourth Proportional to 253,511.08, 380,237.40 and 66,537.16

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Solution

The fourth proportional to 253,511.08, 380,237.40 and 66,537.16 is: 99,798.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,511.08 : 380,237.40 = 66,537.16 : x
  2. Step 2: Convert to fraction form
    253,511.08/380,237.40 = 66,537.16/x
  3. Step 3: Cross multiply
    253,511.08x = 380,237.40 × 66,537.16
  4. Step 4: Simplify right side
    253,511.08x = 25,299,916,721.78
  5. Step 5: Solve for x
    x = 25,299,916,721.78/253,511.08
  6. Step 6: Final answer
    x = 99,798.07

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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.