Home / 495,136.98-683,291.08-280,318.50

Finding the Fourth Proportional to 495,136.98, 683,291.08 and 280,318.50

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Solution

The fourth proportional to 495,136.98, 683,291.08 and 280,318.50 is: 386,840.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,136.98 : 683,291.08 = 280,318.50 : x
  2. Step 2: Convert to fraction form
    495,136.98/683,291.08 = 280,318.50/x
  3. Step 3: Cross multiply
    495,136.98x = 683,291.08 × 280,318.50
  4. Step 4: Simplify right side
    495,136.98x = 191,539,130,608.98
  5. Step 5: Solve for x
    x = 191,539,130,608.98/495,136.98
  6. Step 6: Final answer
    x = 386,840.69

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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.