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Finding the Fourth Proportional to 482,983.65, 666,484 and 268,106.74

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Solution

The fourth proportional to 482,983.65, 666,484 and 268,106.74 is: 369,968.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,983.65 : 666,484 = 268,106.74 : x
  2. Step 2: Convert to fraction form
    482,983.65/666,484 = 268,106.74/x
  3. Step 3: Cross multiply
    482,983.65x = 666,484 × 268,106.74
  4. Step 4: Simplify right side
    482,983.65x = 178,688,852,502.16
  5. Step 5: Solve for x
    x = 178,688,852,502.16/482,983.65
  6. Step 6: Final answer
    x = 369,968.74

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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.