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Finding the Fourth Proportional to 258,792.48, 357,062.40 and 151,388.64

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Solution

The fourth proportional to 258,792.48, 357,062.40 and 151,388.64 is: 208,874.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,792.48 : 357,062.40 = 151,388.64 : x
  2. Step 2: Convert to fraction form
    258,792.48/357,062.40 = 151,388.64/x
  3. Step 3: Cross multiply
    258,792.48x = 357,062.40 × 151,388.64
  4. Step 4: Simplify right side
    258,792.48x = 54,055,191,131.14
  5. Step 5: Solve for x
    x = 54,055,191,131.14/258,792.48
  6. Step 6: Final answer
    x = 208,874.66

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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.