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Finding the Fourth Proportional to 260,500.18, 359,509.56 and 145,790.32

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Solution

The fourth proportional to 260,500.18, 359,509.56 and 145,790.32 is: 201,201.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,500.18 : 359,509.56 = 145,790.32 : x
  2. Step 2: Convert to fraction form
    260,500.18/359,509.56 = 145,790.32/x
  3. Step 3: Cross multiply
    260,500.18x = 359,509.56 × 145,790.32
  4. Step 4: Simplify right side
    260,500.18x = 52,413,013,795.46
  5. Step 5: Solve for x
    x = 52,413,013,795.46/260,500.18
  6. Step 6: Final answer
    x = 201,201.45

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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.