Home / 258,838.15-357,211.40-155,503.96

Finding the Fourth Proportional to 258,838.15, 357,211.40 and 155,503.96

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Solution

The fourth proportional to 258,838.15, 357,211.40 and 155,503.96 is: 214,604.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,838.15 : 357,211.40 = 155,503.96 : x
  2. Step 2: Convert to fraction form
    258,838.15/357,211.40 = 155,503.96/x
  3. Step 3: Cross multiply
    258,838.15x = 357,211.40 × 155,503.96
  4. Step 4: Simplify right side
    258,838.15x = 55,547,786,615.01
  5. Step 5: Solve for x
    x = 55,547,786,615.01/258,838.15
  6. Step 6: Final answer
    x = 214,604.33

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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.