Home / 258,011.72-356,065-143,292.16

Finding the Fourth Proportional to 258,011.72, 356,065 and 143,292.16

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Solution

The fourth proportional to 258,011.72, 356,065 and 143,292.16 is: 197,748.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,011.72 : 356,065 = 143,292.16 : x
  2. Step 2: Convert to fraction form
    258,011.72/356,065 = 143,292.16/x
  3. Step 3: Cross multiply
    258,011.72x = 356,065 × 143,292.16
  4. Step 4: Simplify right side
    258,011.72x = 51,021,322,950.40
  5. Step 5: Solve for x
    x = 51,021,322,950.40/258,011.72
  6. Step 6: Final answer
    x = 197,748.08

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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.