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Finding the Fourth Proportional to 279,373.64, 385,534.50 and 152,049.20

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Solution

The fourth proportional to 279,373.64, 385,534.50 and 152,049.20 is: 209,827.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,373.64 : 385,534.50 = 152,049.20 : x
  2. Step 2: Convert to fraction form
    279,373.64/385,534.50 = 152,049.20/x
  3. Step 3: Cross multiply
    279,373.64x = 385,534.50 × 152,049.20
  4. Step 4: Simplify right side
    279,373.64x = 58,620,212,297.40
  5. Step 5: Solve for x
    x = 58,620,212,297.40/279,373.64
  6. Step 6: Final answer
    x = 209,827.28

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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.