Home / 378,124.02-521,787.69-216,992.34

Finding the Fourth Proportional to 378,124.02, 521,787.69 and 216,992.34

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Solution

The fourth proportional to 378,124.02, 521,787.69 and 216,992.34 is: 299,435.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,124.02 : 521,787.69 = 216,992.34 : x
  2. Step 2: Convert to fraction form
    378,124.02/521,787.69 = 216,992.34/x
  3. Step 3: Cross multiply
    378,124.02x = 521,787.69 × 216,992.34
  4. Step 4: Simplify right side
    378,124.02x = 113,223,931,836.30
  5. Step 5: Solve for x
    x = 113,223,931,836.30/378,124.02
  6. Step 6: Final answer
    x = 299,435.97

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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.