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Finding the Fourth Proportional to 371,411.08, 512,579.02 and 210,294.52

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Solution

The fourth proportional to 371,411.08, 512,579.02 and 210,294.52 is: 290,224.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,411.08 : 512,579.02 = 210,294.52 : x
  2. Step 2: Convert to fraction form
    371,411.08/512,579.02 = 210,294.52/x
  3. Step 3: Cross multiply
    371,411.08x = 512,579.02 × 210,294.52
  4. Step 4: Simplify right side
    371,411.08x = 107,792,558,972.97
  5. Step 5: Solve for x
    x = 107,792,558,972.97/371,411.08
  6. Step 6: Final answer
    x = 290,224.40

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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.