Home / 347,501.20-521,640.60-268,963.60

Finding the Fourth Proportional to 347,501.20, 521,640.60 and 268,963.60

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Solution

The fourth proportional to 347,501.20, 521,640.60 and 268,963.60 is: 403,746.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,501.20 : 521,640.60 = 268,963.60 : x
  2. Step 2: Convert to fraction form
    347,501.20/521,640.60 = 268,963.60/x
  3. Step 3: Cross multiply
    347,501.20x = 521,640.60 × 268,963.60
  4. Step 4: Simplify right side
    347,501.20x = 140,302,333,682.16
  5. Step 5: Solve for x
    x = 140,302,333,682.16/347,501.20
  6. Step 6: Final answer
    x = 403,746.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.