Home / 260,500.75-390,746.85-83,005.35

Finding the Fourth Proportional to 260,500.75, 390,746.85 and 83,005.35

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Solution

The fourth proportional to 260,500.75, 390,746.85 and 83,005.35 is: 124,506.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,500.75 : 390,746.85 = 83,005.35 : x
  2. Step 2: Convert to fraction form
    260,500.75/390,746.85 = 83,005.35/x
  3. Step 3: Cross multiply
    260,500.75x = 390,746.85 × 83,005.35
  4. Step 4: Simplify right side
    260,500.75x = 32,434,079,045.65
  5. Step 5: Solve for x
    x = 32,434,079,045.65/260,500.75
  6. Step 6: Final answer
    x = 124,506.66

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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.