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Finding the Fourth Proportional to 260,344.17, 390,737.39 and 185,647.19

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Solution

The fourth proportional to 260,344.17, 390,737.39 and 185,647.19 is: 278,628.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,344.17 : 390,737.39 = 185,647.19 : x
  2. Step 2: Convert to fraction form
    260,344.17/390,737.39 = 185,647.19/x
  3. Step 3: Cross multiply
    260,344.17x = 390,737.39 × 185,647.19
  4. Step 4: Simplify right side
    260,344.17x = 72,539,295,599.51
  5. Step 5: Solve for x
    x = 72,539,295,599.51/260,344.17
  6. Step 6: Final answer
    x = 278,628.46

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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.