Home / 258,780.12-357,097.32-145,581

Finding the Fourth Proportional to 258,780.12, 357,097.32 and 145,581

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Solution

The fourth proportional to 258,780.12, 357,097.32 and 145,581 is: 200,890.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,780.12 : 357,097.32 = 145,581 : x
  2. Step 2: Convert to fraction form
    258,780.12/357,097.32 = 145,581/x
  3. Step 3: Cross multiply
    258,780.12x = 357,097.32 × 145,581
  4. Step 4: Simplify right side
    258,780.12x = 51,986,584,942.92
  5. Step 5: Solve for x
    x = 51,986,584,942.92/258,780.12
  6. Step 6: Final answer
    x = 200,890.95

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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.