Home / 292,404.28-438,781.36-268,609.72

Finding the Fourth Proportional to 292,404.28, 438,781.36 and 268,609.72

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Solution

The fourth proportional to 292,404.28, 438,781.36 and 268,609.72 is: 403,075.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,404.28 : 438,781.36 = 268,609.72 : x
  2. Step 2: Convert to fraction form
    292,404.28/438,781.36 = 268,609.72/x
  3. Step 3: Cross multiply
    292,404.28x = 438,781.36 × 268,609.72
  4. Step 4: Simplify right side
    292,404.28x = 117,860,938,250.82
  5. Step 5: Solve for x
    x = 117,860,938,250.82/292,404.28
  6. Step 6: Final answer
    x = 403,075.28

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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.