Home / 255,088.27-382,378.51-121,812.72

Finding the Fourth Proportional to 255,088.27, 382,378.51 and 121,812.72

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Solution

The fourth proportional to 255,088.27, 382,378.51 and 121,812.72 is: 182,597.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,088.27 : 382,378.51 = 121,812.72 : x
  2. Step 2: Convert to fraction form
    255,088.27/382,378.51 = 121,812.72/x
  3. Step 3: Cross multiply
    255,088.27x = 382,378.51 × 121,812.72
  4. Step 4: Simplify right side
    255,088.27x = 46,578,566,372.65
  5. Step 5: Solve for x
    x = 46,578,566,372.65/255,088.27
  6. Step 6: Final answer
    x = 182,597.84

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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.