Home / 258,885.06-357,260.64-145,707.80

Finding the Fourth Proportional to 258,885.06, 357,260.64 and 145,707.80

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Solution

The fourth proportional to 258,885.06, 357,260.64 and 145,707.80 is: 201,076.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,885.06 : 357,260.64 = 145,707.80 : x
  2. Step 2: Convert to fraction form
    258,885.06/357,260.64 = 145,707.80/x
  3. Step 3: Cross multiply
    258,885.06x = 357,260.64 × 145,707.80
  4. Step 4: Simplify right side
    258,885.06x = 52,055,661,880.99
  5. Step 5: Solve for x
    x = 52,055,661,880.99/258,885.06
  6. Step 6: Final answer
    x = 201,076.35

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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.