Home / 287,775.27-397,380.60-180,529.65

Finding the Fourth Proportional to 287,775.27, 397,380.60 and 180,529.65

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Solution

The fourth proportional to 287,775.27, 397,380.60 and 180,529.65 is: 249,288.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,775.27 : 397,380.60 = 180,529.65 : x
  2. Step 2: Convert to fraction form
    287,775.27/397,380.60 = 180,529.65/x
  3. Step 3: Cross multiply
    287,775.27x = 397,380.60 × 180,529.65
  4. Step 4: Simplify right side
    287,775.27x = 71,738,980,634.79
  5. Step 5: Solve for x
    x = 71,738,980,634.79/287,775.27
  6. Step 6: Final answer
    x = 249,288.21

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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.