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Finding the Fourth Proportional to 260,312.40, 390,614.40 and 110,527.20

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Solution

The fourth proportional to 260,312.40, 390,614.40 and 110,527.20 is: 165,852.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,312.40 : 390,614.40 = 110,527.20 : x
  2. Step 2: Convert to fraction form
    260,312.40/390,614.40 = 110,527.20/x
  3. Step 3: Cross multiply
    260,312.40x = 390,614.40 × 110,527.20
  4. Step 4: Simplify right side
    260,312.40x = 43,173,515,911.68
  5. Step 5: Solve for x
    x = 43,173,515,911.68/260,312.40
  6. Step 6: Final answer
    x = 165,852.71

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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.