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Finding the Fourth Proportional to 292,378.54, 403,477.98 and 163,318.78

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Solution

The fourth proportional to 292,378.54, 403,477.98 and 163,318.78 is: 225,377.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,378.54 : 403,477.98 = 163,318.78 : x
  2. Step 2: Convert to fraction form
    292,378.54/403,477.98 = 163,318.78/x
  3. Step 3: Cross multiply
    292,378.54x = 403,477.98 × 163,318.78
  4. Step 4: Simplify right side
    292,378.54x = 65,895,531,450.46
  5. Step 5: Solve for x
    x = 65,895,531,450.46/292,378.54
  6. Step 6: Final answer
    x = 225,377.46

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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.