Home / 376,869.40-520,052.77-215,722.10

Finding the Fourth Proportional to 376,869.40, 520,052.77 and 215,722.10

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Solution

The fourth proportional to 376,869.40, 520,052.77 and 215,722.10 is: 297,681.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,869.40 : 520,052.77 = 215,722.10 : x
  2. Step 2: Convert to fraction form
    376,869.40/520,052.77 = 215,722.10/x
  3. Step 3: Cross multiply
    376,869.40x = 520,052.77 × 215,722.10
  4. Step 4: Simplify right side
    376,869.40x = 112,186,875,655.22
  5. Step 5: Solve for x
    x = 112,186,875,655.22/376,869.40
  6. Step 6: Final answer
    x = 297,681.04

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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.