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Finding the Fourth Proportional to 260,167.65, 390,057.08 and 141,972.45

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Solution

The fourth proportional to 260,167.65, 390,057.08 and 141,972.45 is: 212,852.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,167.65 : 390,057.08 = 141,972.45 : x
  2. Step 2: Convert to fraction form
    260,167.65/390,057.08 = 141,972.45/x
  3. Step 3: Cross multiply
    260,167.65x = 390,057.08 × 141,972.45
  4. Step 4: Simplify right side
    260,167.65x = 55,377,358,577.58
  5. Step 5: Solve for x
    x = 55,377,358,577.58/260,167.65
  6. Step 6: Final answer
    x = 212,852.59

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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.