Home / 386,941.02-533,841.75-252,882.78

Finding the Fourth Proportional to 386,941.02, 533,841.75 and 252,882.78

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Solution

The fourth proportional to 386,941.02, 533,841.75 and 252,882.78 is: 348,888.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,941.02 : 533,841.75 = 252,882.78 : x
  2. Step 2: Convert to fraction form
    386,941.02/533,841.75 = 252,882.78/x
  3. Step 3: Cross multiply
    386,941.02x = 533,841.75 × 252,882.78
  4. Step 4: Simplify right side
    386,941.02x = 134,999,385,820.07
  5. Step 5: Solve for x
    x = 134,999,385,820.07/386,941.02
  6. Step 6: Final answer
    x = 348,888.79

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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.