Home / 258,330.40-387,450.24-71,300.32

Finding the Fourth Proportional to 258,330.40, 387,450.24 and 71,300.32

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Solution

The fourth proportional to 258,330.40, 387,450.24 and 71,300.32 is: 106,937.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,330.40 : 387,450.24 = 71,300.32 : x
  2. Step 2: Convert to fraction form
    258,330.40/387,450.24 = 71,300.32/x
  3. Step 3: Cross multiply
    258,330.40x = 387,450.24 × 71,300.32
  4. Step 4: Simplify right side
    258,330.40x = 27,625,326,096.08
  5. Step 5: Solve for x
    x = 27,625,326,096.08/258,330.40
  6. Step 6: Final answer
    x = 106,937.96

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1.5x scale

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.