Home / 288,087.12-397,730.52-207,722.16

Finding the Fourth Proportional to 288,087.12, 397,730.52 and 207,722.16

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Solution

The fourth proportional to 288,087.12, 397,730.52 and 207,722.16 is: 286,779.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,087.12 : 397,730.52 = 207,722.16 : x
  2. Step 2: Convert to fraction form
    288,087.12/397,730.52 = 207,722.16/x
  3. Step 3: Cross multiply
    288,087.12x = 397,730.52 × 207,722.16
  4. Step 4: Simplify right side
    288,087.12x = 82,617,442,712.32
  5. Step 5: Solve for x
    x = 82,617,442,712.32/288,087.12
  6. Step 6: Final answer
    x = 286,779.37

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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.