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Finding the Fourth Proportional to 347,695.98, 480,050.94 and 266,978.70

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Solution

The fourth proportional to 347,695.98, 480,050.94 and 266,978.70 is: 368,607.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,695.98 : 480,050.94 = 266,978.70 : x
  2. Step 2: Convert to fraction form
    347,695.98/480,050.94 = 266,978.70/x
  3. Step 3: Cross multiply
    347,695.98x = 480,050.94 × 266,978.70
  4. Step 4: Simplify right side
    347,695.98x = 128,163,375,894.98
  5. Step 5: Solve for x
    x = 128,163,375,894.98/347,695.98
  6. Step 6: Final answer
    x = 368,607.59

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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.