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Finding the Fourth Proportional to 291,323.59, 402,025.88 and 163,999.49

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Solution

The fourth proportional to 291,323.59, 402,025.88 and 163,999.49 is: 226,318.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,323.59 : 402,025.88 = 163,999.49 : x
  2. Step 2: Convert to fraction form
    291,323.59/402,025.88 = 163,999.49/x
  3. Step 3: Cross multiply
    291,323.59x = 402,025.88 × 163,999.49
  4. Step 4: Simplify right side
    291,323.59x = 65,932,037,686.67
  5. Step 5: Solve for x
    x = 65,932,037,686.67/291,323.59
  6. Step 6: Final answer
    x = 226,318.91

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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.