Home / 258,207.51-356,394.03-145,066.71

Finding the Fourth Proportional to 258,207.51, 356,394.03 and 145,066.71

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Solution

The fourth proportional to 258,207.51, 356,394.03 and 145,066.71 is: 200,230.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,207.51 : 356,394.03 = 145,066.71 : x
  2. Step 2: Convert to fraction form
    258,207.51/356,394.03 = 145,066.71/x
  3. Step 3: Cross multiply
    258,207.51x = 356,394.03 × 145,066.71
  4. Step 4: Simplify right side
    258,207.51x = 51,700,909,395.74
  5. Step 5: Solve for x
    x = 51,700,909,395.74/258,207.51
  6. Step 6: Final answer
    x = 200,230.08

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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.