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Finding the Fourth Proportional to 346,863.56, 520,284.29 and 157,185.05

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Solution

The fourth proportional to 346,863.56, 520,284.29 and 157,185.05 is: 235,772.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,863.56 : 520,284.29 = 157,185.05 : x
  2. Step 2: Convert to fraction form
    346,863.56/520,284.29 = 157,185.05/x
  3. Step 3: Cross multiply
    346,863.56x = 520,284.29 × 157,185.05
  4. Step 4: Simplify right side
    346,863.56x = 81,780,908,750.52
  5. Step 5: Solve for x
    x = 81,780,908,750.52/346,863.56
  6. Step 6: Final answer
    x = 235,772.56

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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.