Home / 260,207.72-390,337.56-70,671.08

Finding the Fourth Proportional to 260,207.72, 390,337.56 and 70,671.08

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Solution

The fourth proportional to 260,207.72, 390,337.56 and 70,671.08 is: 106,013.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,207.72 : 390,337.56 = 70,671.08 : x
  2. Step 2: Convert to fraction form
    260,207.72/390,337.56 = 70,671.08/x
  3. Step 3: Cross multiply
    260,207.72x = 390,337.56 × 70,671.08
  4. Step 4: Simplify right side
    260,207.72x = 27,585,576,929.76
  5. Step 5: Solve for x
    x = 27,585,576,929.76/260,207.72
  6. Step 6: Final answer
    x = 106,013.68

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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.