Home / 379,935.18-524,259.20-216,612.76

Finding the Fourth Proportional to 379,935.18, 524,259.20 and 216,612.76

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Solution

The fourth proportional to 379,935.18, 524,259.20 and 216,612.76 is: 298,896.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,935.18 : 524,259.20 = 216,612.76 : x
  2. Step 2: Convert to fraction form
    379,935.18/524,259.20 = 216,612.76/x
  3. Step 3: Cross multiply
    379,935.18x = 524,259.20 × 216,612.76
  4. Step 4: Simplify right side
    379,935.18x = 113,561,232,267.39
  5. Step 5: Solve for x
    x = 113,561,232,267.39/379,935.18
  6. Step 6: Final answer
    x = 298,896.33

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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.