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Finding the Fourth Proportional to 571,989.60, 858,276 and 235,288.80

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Solution

The fourth proportional to 571,989.60, 858,276 and 235,288.80 is: 353,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,989.60 : 858,276 = 235,288.80 : x
  2. Step 2: Convert to fraction form
    571,989.60/858,276 = 235,288.80/x
  3. Step 3: Cross multiply
    571,989.60x = 858,276 × 235,288.80
  4. Step 4: Simplify right side
    571,989.60x = 201,942,730,108.80
  5. Step 5: Solve for x
    x = 201,942,730,108.80/571,989.60
  6. Step 6: Final answer
    x = 353,053.15

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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.