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Finding the Fourth Proportional to 279,315.18, 385,387.74 and 164,598.51

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Solution

The fourth proportional to 279,315.18, 385,387.74 and 164,598.51 is: 227,106.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,315.18 : 385,387.74 = 164,598.51 : x
  2. Step 2: Convert to fraction form
    279,315.18/385,387.74 = 164,598.51/x
  3. Step 3: Cross multiply
    279,315.18x = 385,387.74 × 164,598.51
  4. Step 4: Simplify right side
    279,315.18x = 63,434,247,776.27
  5. Step 5: Solve for x
    x = 63,434,247,776.27/279,315.18
  6. Step 6: Final answer
    x = 227,106.34

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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.