Home / 318,208.11-439,125.65-187,461.66

Finding the Fourth Proportional to 318,208.11, 439,125.65 and 187,461.66

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Solution

The fourth proportional to 318,208.11, 439,125.65 and 187,461.66 is: 258,696.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,208.11 : 439,125.65 = 187,461.66 : x
  2. Step 2: Convert to fraction form
    318,208.11/439,125.65 = 187,461.66/x
  3. Step 3: Cross multiply
    318,208.11x = 439,125.65 × 187,461.66
  4. Step 4: Simplify right side
    318,208.11x = 82,319,222,360.27
  5. Step 5: Solve for x
    x = 82,319,222,360.27/318,208.11
  6. Step 6: Final answer
    x = 258,696.18

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1.5x scale

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.