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Finding the Fourth Proportional to 291,989.64, 402,955.38 and 169,472.85

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Solution

The fourth proportional to 291,989.64, 402,955.38 and 169,472.85 is: 233,878.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,989.64 : 402,955.38 = 169,472.85 : x
  2. Step 2: Convert to fraction form
    291,989.64/402,955.38 = 169,472.85/x
  3. Step 3: Cross multiply
    291,989.64x = 402,955.38 × 169,472.85
  4. Step 4: Simplify right side
    291,989.64x = 68,289,996,671.43
  5. Step 5: Solve for x
    x = 68,289,996,671.43/291,989.64
  6. Step 6: Final answer
    x = 233,878.15

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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.