Home / 380,763.20-571,193.76-127,934.48

Finding the Fourth Proportional to 380,763.20, 571,193.76 and 127,934.48

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Solution

The fourth proportional to 380,763.20, 571,193.76 and 127,934.48 is: 191,918.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,763.20 : 571,193.76 = 127,934.48 : x
  2. Step 2: Convert to fraction form
    380,763.20/571,193.76 = 127,934.48/x
  3. Step 3: Cross multiply
    380,763.20x = 571,193.76 × 127,934.48
  4. Step 4: Simplify right side
    380,763.20x = 73,075,376,664.84
  5. Step 5: Solve for x
    x = 73,075,376,664.84/380,763.20
  6. Step 6: Final answer
    x = 191,918.17

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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.