Home / 258,916.38-357,296.31-145,723.74

Finding the Fourth Proportional to 258,916.38, 357,296.31 and 145,723.74

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Solution

The fourth proportional to 258,916.38, 357,296.31 and 145,723.74 is: 201,094.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,916.38 : 357,296.31 = 145,723.74 : x
  2. Step 2: Convert to fraction form
    258,916.38/357,296.31 = 145,723.74/x
  3. Step 3: Cross multiply
    258,916.38x = 357,296.31 × 145,723.74
  4. Step 4: Simplify right side
    258,916.38x = 52,066,554,581.40
  5. Step 5: Solve for x
    x = 52,066,554,581.40/258,916.38
  6. Step 6: Final answer
    x = 201,094.09

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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.