Home / 261,938.12-392,904.30-156,786.44

Finding the Fourth Proportional to 261,938.12, 392,904.30 and 156,786.44

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Solution

The fourth proportional to 261,938.12, 392,904.30 and 156,786.44 is: 235,177.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,938.12 : 392,904.30 = 156,786.44 : x
  2. Step 2: Convert to fraction form
    261,938.12/392,904.30 = 156,786.44/x
  3. Step 3: Cross multiply
    261,938.12x = 392,904.30 × 156,786.44
  4. Step 4: Simplify right side
    261,938.12x = 61,602,066,457.69
  5. Step 5: Solve for x
    x = 61,602,066,457.69/261,938.12
  6. Step 6: Final answer
    x = 235,177.94

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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.