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Finding the Fourth Proportional to 376,717.10, 565,513.05 and 216,920.30

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Solution

The fourth proportional to 376,717.10, 565,513.05 and 216,920.30 is: 325,632.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,717.10 : 565,513.05 = 216,920.30 : x
  2. Step 2: Convert to fraction form
    376,717.10/565,513.05 = 216,920.30/x
  3. Step 3: Cross multiply
    376,717.10x = 565,513.05 × 216,920.30
  4. Step 4: Simplify right side
    376,717.10x = 122,671,260,459.92
  5. Step 5: Solve for x
    x = 122,671,260,459.92/376,717.10
  6. Step 6: Final answer
    x = 325,632.31

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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.