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Finding the Fourth Proportional to 347,342.77, 479,604.81 and 266,642.47

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Solution

The fourth proportional to 347,342.77, 479,604.81 and 266,642.47 is: 368,175.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,342.77 : 479,604.81 = 266,642.47 : x
  2. Step 2: Convert to fraction form
    347,342.77/479,604.81 = 266,642.47/x
  3. Step 3: Cross multiply
    347,342.77x = 479,604.81 × 266,642.47
  4. Step 4: Simplify right side
    347,342.77x = 127,883,011,162.28
  5. Step 5: Solve for x
    x = 127,883,011,162.28/347,342.77
  6. Step 6: Final answer
    x = 368,175.25

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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.