Home / 260,135.76-390,024.34-102,382.32

Finding the Fourth Proportional to 260,135.76, 390,024.34 and 102,382.32

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Solution

The fourth proportional to 260,135.76, 390,024.34 and 102,382.32 is: 153,502.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,135.76 : 390,024.34 = 102,382.32 : x
  2. Step 2: Convert to fraction form
    260,135.76/390,024.34 = 102,382.32/x
  3. Step 3: Cross multiply
    260,135.76x = 390,024.34 × 102,382.32
  4. Step 4: Simplify right side
    260,135.76x = 39,931,596,785.67
  5. Step 5: Solve for x
    x = 39,931,596,785.67/260,135.76
  6. Step 6: Final answer
    x = 153,502.91

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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.