Home / 280,722.02-387,435.89-178,714.87

Finding the Fourth Proportional to 280,722.02, 387,435.89 and 178,714.87

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Solution

The fourth proportional to 280,722.02, 387,435.89 and 178,714.87 is: 246,651.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,722.02 : 387,435.89 = 178,714.87 : x
  2. Step 2: Convert to fraction form
    280,722.02/387,435.89 = 178,714.87/x
  3. Step 3: Cross multiply
    280,722.02x = 387,435.89 × 178,714.87
  4. Step 4: Simplify right side
    280,722.02x = 69,240,554,192.88
  5. Step 5: Solve for x
    x = 69,240,554,192.88/280,722.02
  6. Step 6: Final answer
    x = 246,651.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.