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Finding the Fourth Proportional to 495,034.22, 683,030.14 and 280,174.29

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Solution

The fourth proportional to 495,034.22, 683,030.14 and 280,174.29 is: 386,574.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,034.22 : 683,030.14 = 280,174.29 : x
  2. Step 2: Convert to fraction form
    495,034.22/683,030.14 = 280,174.29/x
  3. Step 3: Cross multiply
    495,034.22x = 683,030.14 × 280,174.29
  4. Step 4: Simplify right side
    495,034.22x = 191,367,481,261.30
  5. Step 5: Solve for x
    x = 191,367,481,261.30/495,034.22
  6. Step 6: Final answer
    x = 386,574.25

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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.