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Finding the Fourth Proportional to 333,856.70, 499,863.45 and 260,128.70

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Solution

The fourth proportional to 333,856.70, 499,863.45 and 260,128.70 is: 389,474.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,856.70 : 499,863.45 = 260,128.70 : x
  2. Step 2: Convert to fraction form
    333,856.70/499,863.45 = 260,128.70/x
  3. Step 3: Cross multiply
    333,856.70x = 499,863.45 × 260,128.70
  4. Step 4: Simplify right side
    333,856.70x = 130,028,829,426.02
  5. Step 5: Solve for x
    x = 130,028,829,426.02/333,856.70
  6. Step 6: Final answer
    x = 389,474.97

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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.