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Finding the Fourth Proportional to 260,010.70, 390,053.85 and 110,250.70

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Solution

The fourth proportional to 260,010.70, 390,053.85 and 110,250.70 is: 165,392.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,010.70 : 390,053.85 = 110,250.70 : x
  2. Step 2: Convert to fraction form
    260,010.70/390,053.85 = 110,250.70/x
  3. Step 3: Cross multiply
    260,010.70x = 390,053.85 × 110,250.70
  4. Step 4: Simplify right side
    260,010.70x = 43,003,710,000.20
  5. Step 5: Solve for x
    x = 43,003,710,000.20/260,010.70
  6. Step 6: Final answer
    x = 165,392.08

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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.