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Finding the Fourth Proportional to 371,497.65, 512,672.72 and 210,348.39

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Solution

The fourth proportional to 371,497.65, 512,672.72 and 210,348.39 is: 290,284.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,497.65 : 512,672.72 = 210,348.39 : x
  2. Step 2: Convert to fraction form
    371,497.65/512,672.72 = 210,348.39/x
  3. Step 3: Cross multiply
    371,497.65x = 512,672.72 × 210,348.39
  4. Step 4: Simplify right side
    371,497.65x = 107,839,880,197.18
  5. Step 5: Solve for x
    x = 107,839,880,197.18/371,497.65
  6. Step 6: Final answer
    x = 290,284.15

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1.5x scale

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.