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Finding the Fourth Proportional to 260,059.77, 358,877.39 and 145,339.47

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Solution

The fourth proportional to 260,059.77, 358,877.39 and 145,339.47 is: 200,565.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,059.77 : 358,877.39 = 145,339.47 : x
  2. Step 2: Convert to fraction form
    260,059.77/358,877.39 = 145,339.47/x
  3. Step 3: Cross multiply
    260,059.77x = 358,877.39 × 145,339.47
  4. Step 4: Simplify right side
    260,059.77x = 52,159,048,930.89
  5. Step 5: Solve for x
    x = 52,159,048,930.89/260,059.77
  6. Step 6: Final answer
    x = 200,565.62

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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.