Home / 258,937.06-357,285.45-145,735.78

Finding the Fourth Proportional to 258,937.06, 357,285.45 and 145,735.78

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Solution

The fourth proportional to 258,937.06, 357,285.45 and 145,735.78 is: 201,088.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,937.06 : 357,285.45 = 145,735.78 : x
  2. Step 2: Convert to fraction form
    258,937.06/357,285.45 = 145,735.78/x
  3. Step 3: Cross multiply
    258,937.06x = 357,285.45 × 145,735.78
  4. Step 4: Simplify right side
    258,937.06x = 52,069,273,738.40
  5. Step 5: Solve for x
    x = 52,069,273,738.40/258,937.06
  6. Step 6: Final answer
    x = 201,088.53

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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.