Home / 495,135.23-683,288.66-280,316.75

Finding the Fourth Proportional to 495,135.23, 683,288.66 and 280,316.75

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Solution

The fourth proportional to 495,135.23, 683,288.66 and 280,316.75 is: 386,838.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,135.23 : 683,288.66 = 280,316.75 : x
  2. Step 2: Convert to fraction form
    495,135.23/683,288.66 = 280,316.75/x
  3. Step 3: Cross multiply
    495,135.23x = 683,288.66 × 280,316.75
  4. Step 4: Simplify right side
    495,135.23x = 191,537,253,767.40
  5. Step 5: Solve for x
    x = 191,537,253,767.40/495,135.23
  6. Step 6: Final answer
    x = 386,838.27

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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.