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Finding the Fourth Proportional to 279,659.34, 385,927.92 and 152,334.93

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Solution

The fourth proportional to 279,659.34, 385,927.92 and 152,334.93 is: 210,221.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,659.34 : 385,927.92 = 152,334.93 : x
  2. Step 2: Convert to fraction form
    279,659.34/385,927.92 = 152,334.93/x
  3. Step 3: Cross multiply
    279,659.34x = 385,927.92 × 152,334.93
  4. Step 4: Simplify right side
    279,659.34x = 58,790,302,678.25
  5. Step 5: Solve for x
    x = 58,790,302,678.25/279,659.34
  6. Step 6: Final answer
    x = 210,221.13

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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.