Home / 258,728.67-357,036.81-145,529.55

Finding the Fourth Proportional to 258,728.67, 357,036.81 and 145,529.55

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Solution

The fourth proportional to 258,728.67, 357,036.81 and 145,529.55 is: 200,825.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,728.67 : 357,036.81 = 145,529.55 : x
  2. Step 2: Convert to fraction form
    258,728.67/357,036.81 = 145,529.55/x
  3. Step 3: Cross multiply
    258,728.67x = 357,036.81 × 145,529.55
  4. Step 4: Simplify right side
    258,728.67x = 51,959,406,292.74
  5. Step 5: Solve for x
    x = 51,959,406,292.74/258,728.67
  6. Step 6: Final answer
    x = 200,825.85

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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.