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Finding the Fourth Proportional to 279,341.56, 385,491.70 and 152,017.08

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Solution

The fourth proportional to 279,341.56, 385,491.70 and 152,017.08 is: 209,783.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,341.56 : 385,491.70 = 152,017.08 : x
  2. Step 2: Convert to fraction form
    279,341.56/385,491.70 = 152,017.08/x
  3. Step 3: Cross multiply
    279,341.56x = 385,491.70 × 152,017.08
  4. Step 4: Simplify right side
    279,341.56x = 58,601,322,598.24
  5. Step 5: Solve for x
    x = 58,601,322,598.24/279,341.56
  6. Step 6: Final answer
    x = 209,783.76

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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.