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Finding the Fourth Proportional to 495,048.93, 683,146.86 and 280,200.89

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Solution

The fourth proportional to 495,048.93, 683,146.86 and 280,200.89 is: 386,665.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,048.93 : 683,146.86 = 280,200.89 : x
  2. Step 2: Convert to fraction form
    495,048.93/683,146.86 = 280,200.89/x
  3. Step 3: Cross multiply
    495,048.93x = 683,146.86 × 280,200.89
  4. Step 4: Simplify right side
    495,048.93x = 191,418,354,756.97
  5. Step 5: Solve for x
    x = 191,418,354,756.97/495,048.93
  6. Step 6: Final answer
    x = 386,665.53

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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.