Home / 260,444.10-390,666.15-73,455.60

Finding the Fourth Proportional to 260,444.10, 390,666.15 and 73,455.60

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Solution

The fourth proportional to 260,444.10, 390,666.15 and 73,455.60 is: 110,183.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,444.10 : 390,666.15 = 73,455.60 : x
  2. Step 2: Convert to fraction form
    260,444.10/390,666.15 = 73,455.60/x
  3. Step 3: Cross multiply
    260,444.10x = 390,666.15 × 73,455.60
  4. Step 4: Simplify right side
    260,444.10x = 28,696,616,447.94
  5. Step 5: Solve for x
    x = 28,696,616,447.94/260,444.10
  6. Step 6: Final answer
    x = 110,183.40

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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.