Home / 387,996.35-535,427.03-242,882.17

Finding the Fourth Proportional to 387,996.35, 535,427.03 and 242,882.17

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Solution

The fourth proportional to 387,996.35, 535,427.03 and 242,882.17 is: 335,172.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,996.35 : 535,427.03 = 242,882.17 : x
  2. Step 2: Convert to fraction form
    387,996.35/535,427.03 = 242,882.17/x
  3. Step 3: Cross multiply
    387,996.35x = 535,427.03 × 242,882.17
  4. Step 4: Simplify right side
    387,996.35x = 130,045,675,638.72
  5. Step 5: Solve for x
    x = 130,045,675,638.72/387,996.35
  6. Step 6: Final answer
    x = 335,172.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.