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Finding the Fourth Proportional to 254,859.56, 382,279.60 and 77,359.40

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Solution

The fourth proportional to 254,859.56, 382,279.60 and 77,359.40 is: 116,036.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,859.56 : 382,279.60 = 77,359.40 : x
  2. Step 2: Convert to fraction form
    254,859.56/382,279.60 = 77,359.40/x
  3. Step 3: Cross multiply
    254,859.56x = 382,279.60 × 77,359.40
  4. Step 4: Simplify right side
    254,859.56x = 29,572,920,488.24
  5. Step 5: Solve for x
    x = 29,572,920,488.24/254,859.56
  6. Step 6: Final answer
    x = 116,036.14

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1.5x scale

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.