Home / 260,298.55-390,545.03-102,636.91

Finding the Fourth Proportional to 260,298.55, 390,545.03 and 102,636.91

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Solution

The fourth proportional to 260,298.55, 390,545.03 and 102,636.91 is: 153,993.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,298.55 : 390,545.03 = 102,636.91 : x
  2. Step 2: Convert to fraction form
    260,298.55/390,545.03 = 102,636.91/x
  3. Step 3: Cross multiply
    260,298.55x = 390,545.03 × 102,636.91
  4. Step 4: Simplify right side
    260,298.55x = 40,084,334,581.87
  5. Step 5: Solve for x
    x = 40,084,334,581.87/260,298.55
  6. Step 6: Final answer
    x = 153,993.69

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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.