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Finding the Fourth Proportional to 480,080, 662,510.40 and 268,112

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Solution

The fourth proportional to 480,080, 662,510.40 and 268,112 is: 369,994.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,080 : 662,510.40 = 268,112 : x
  2. Step 2: Convert to fraction form
    480,080/662,510.40 = 268,112/x
  3. Step 3: Cross multiply
    480,080x = 662,510.40 × 268,112
  4. Step 4: Simplify right side
    480,080x = 177,626,988,364.80
  5. Step 5: Solve for x
    x = 177,626,988,364.80/480,080
  6. Step 6: Final answer
    x = 369,994.56

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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.