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Finding the Fourth Proportional to 338,648.95, 508,001.04 and 170,082.55

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Solution

The fourth proportional to 338,648.95, 508,001.04 and 170,082.55 is: 255,137.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,648.95 : 508,001.04 = 170,082.55 : x
  2. Step 2: Convert to fraction form
    338,648.95/508,001.04 = 170,082.55/x
  3. Step 3: Cross multiply
    338,648.95x = 508,001.04 × 170,082.55
  4. Step 4: Simplify right side
    338,648.95x = 86,402,111,435.44
  5. Step 5: Solve for x
    x = 86,402,111,435.44/338,648.95
  6. Step 6: Final answer
    x = 255,137.69

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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.