Home / 261,243.32-391,975.93-142,776.26

Finding the Fourth Proportional to 261,243.32, 391,975.93 and 142,776.26

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Solution

The fourth proportional to 261,243.32, 391,975.93 and 142,776.26 is: 214,225.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,243.32 : 391,975.93 = 142,776.26 : x
  2. Step 2: Convert to fraction form
    261,243.32/391,975.93 = 142,776.26/x
  3. Step 3: Cross multiply
    261,243.32x = 391,975.93 × 142,776.26
  4. Step 4: Simplify right side
    261,243.32x = 55,964,857,295.42
  5. Step 5: Solve for x
    x = 55,964,857,295.42/261,243.32
  6. Step 6: Final answer
    x = 214,225.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.