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Finding the Fourth Proportional to 251,462.66, 347,007.90 and 142,574.32

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Solution

The fourth proportional to 251,462.66, 347,007.90 and 142,574.32 is: 196,746.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,462.66 : 347,007.90 = 142,574.32 : x
  2. Step 2: Convert to fraction form
    251,462.66/347,007.90 = 142,574.32/x
  3. Step 3: Cross multiply
    251,462.66x = 347,007.90 × 142,574.32
  4. Step 4: Simplify right side
    251,462.66x = 49,474,415,377.13
  5. Step 5: Solve for x
    x = 49,474,415,377.13/251,462.66
  6. Step 6: Final answer
    x = 196,746.57

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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.