Home / 386,870.02-533,932.77-217,113.46

Finding the Fourth Proportional to 386,870.02, 533,932.77 and 217,113.46

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Solution

The fourth proportional to 386,870.02, 533,932.77 and 217,113.46 is: 299,645.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,870.02 : 533,932.77 = 217,113.46 : x
  2. Step 2: Convert to fraction form
    386,870.02/533,932.77 = 217,113.46/x
  3. Step 3: Cross multiply
    386,870.02x = 533,932.77 × 217,113.46
  4. Step 4: Simplify right side
    386,870.02x = 115,923,991,102.08
  5. Step 5: Solve for x
    x = 115,923,991,102.08/386,870.02
  6. Step 6: Final answer
    x = 299,645.84

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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.