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Finding the Fourth Proportional to 279,360.50, 385,450.26 and 164,643.71

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Solution

The fourth proportional to 279,360.50, 385,450.26 and 164,643.71 is: 227,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,360.50 : 385,450.26 = 164,643.71 : x
  2. Step 2: Convert to fraction form
    279,360.50/385,450.26 = 164,643.71/x
  3. Step 3: Cross multiply
    279,360.50x = 385,450.26 × 164,643.71
  4. Step 4: Simplify right side
    279,360.50x = 63,461,960,826.86
  5. Step 5: Solve for x
    x = 63,461,960,826.86/279,360.50
  6. Step 6: Final answer
    x = 227,168.70

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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.