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Finding the Fourth Proportional to 511,343.29, 767,240.88 and 268,126.28

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Solution

The fourth proportional to 511,343.29, 767,240.88 and 268,126.28 is: 402,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,343.29 : 767,240.88 = 268,126.28 : x
  2. Step 2: Convert to fraction form
    511,343.29/767,240.88 = 268,126.28/x
  3. Step 3: Cross multiply
    511,343.29x = 767,240.88 × 268,126.28
  4. Step 4: Simplify right side
    511,343.29x = 205,717,443,018.33
  5. Step 5: Solve for x
    x = 205,717,443,018.33/511,343.29
  6. Step 6: Final answer
    x = 402,307.90

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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.