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Finding the Fourth Proportional to 347,284.80, 520,927.20 and 268,552.80

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Solution

The fourth proportional to 347,284.80, 520,927.20 and 268,552.80 is: 402,829.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,284.80 : 520,927.20 = 268,552.80 : x
  2. Step 2: Convert to fraction form
    347,284.80/520,927.20 = 268,552.80/x
  3. Step 3: Cross multiply
    347,284.80x = 520,927.20 × 268,552.80
  4. Step 4: Simplify right side
    347,284.80x = 139,896,458,156.16
  5. Step 5: Solve for x
    x = 139,896,458,156.16/347,284.80
  6. Step 6: Final answer
    x = 402,829.20

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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.