Home / 260,733.13-390,430.83-180,657.34

Finding the Fourth Proportional to 260,733.13, 390,430.83 and 180,657.34

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Solution

The fourth proportional to 260,733.13, 390,430.83 and 180,657.34 is: 270,522.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,733.13 : 390,430.83 = 180,657.34 : x
  2. Step 2: Convert to fraction form
    260,733.13/390,430.83 = 180,657.34/x
  3. Step 3: Cross multiply
    260,733.13x = 390,430.83 × 180,657.34
  4. Step 4: Simplify right side
    260,733.13x = 70,534,194,903.18
  5. Step 5: Solve for x
    x = 70,534,194,903.18/260,733.13
  6. Step 6: Final answer
    x = 270,522.57

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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.