Home / 261,981.77-392,975.37-143,588.52

Finding the Fourth Proportional to 261,981.77, 392,975.37 and 143,588.52

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Solution

The fourth proportional to 261,981.77, 392,975.37 and 143,588.52 is: 215,384.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,981.77 : 392,975.37 = 143,588.52 : x
  2. Step 2: Convert to fraction form
    261,981.77/392,975.37 = 143,588.52/x
  3. Step 3: Cross multiply
    261,981.77x = 392,975.37 × 143,588.52
  4. Step 4: Simplify right side
    261,981.77x = 56,426,751,774.75
  5. Step 5: Solve for x
    x = 56,426,751,774.75/261,981.77
  6. Step 6: Final answer
    x = 215,384.27

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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.