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Finding the Fourth Proportional to 409,599.63, 614,672.72 and 143,360.16

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Solution

The fourth proportional to 409,599.63, 614,672.72 and 143,360.16 is: 215,135.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,599.63 : 614,672.72 = 143,360.16 : x
  2. Step 2: Convert to fraction form
    409,599.63/614,672.72 = 143,360.16/x
  3. Step 3: Cross multiply
    409,599.63x = 614,672.72 × 143,360.16
  4. Step 4: Simplify right side
    409,599.63x = 88,119,579,076.89
  5. Step 5: Solve for x
    x = 88,119,579,076.89/409,599.63
  6. Step 6: Final answer
    x = 215,135.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.