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Finding the Fourth Proportional to 377,985.60, 566,200.80 and 259,790.40

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Solution

The fourth proportional to 377,985.60, 566,200.80 and 259,790.40 is: 389,151.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,985.60 : 566,200.80 = 259,790.40 : x
  2. Step 2: Convert to fraction form
    377,985.60/566,200.80 = 259,790.40/x
  3. Step 3: Cross multiply
    377,985.60x = 566,200.80 × 259,790.40
  4. Step 4: Simplify right side
    377,985.60x = 147,093,532,312.32
  5. Step 5: Solve for x
    x = 147,093,532,312.32/377,985.60
  6. Step 6: Final answer
    x = 389,151.15

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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.