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Finding the Fourth Proportional to 258,752.20, 357,063.06 and 145,568.20

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Solution

The fourth proportional to 258,752.20, 357,063.06 and 145,568.20 is: 200,875.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,752.20 : 357,063.06 = 145,568.20 : x
  2. Step 2: Convert to fraction form
    258,752.20/357,063.06 = 145,568.20/x
  3. Step 3: Cross multiply
    258,752.20x = 357,063.06 × 145,568.20
  4. Step 4: Simplify right side
    258,752.20x = 51,977,026,930.69
  5. Step 5: Solve for x
    x = 51,977,026,930.69/258,752.20
  6. Step 6: Final answer
    x = 200,875.69

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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.