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Finding the Fourth Proportional to 245,302.52, 338,545.52 and 136,417.70

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Solution

The fourth proportional to 245,302.52, 338,545.52 and 136,417.70 is: 188,272.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,302.52 : 338,545.52 = 136,417.70 : x
  2. Step 2: Convert to fraction form
    245,302.52/338,545.52 = 136,417.70/x
  3. Step 3: Cross multiply
    245,302.52x = 338,545.52 × 136,417.70
  4. Step 4: Simplify right side
    245,302.52x = 46,183,598,808.89
  5. Step 5: Solve for x
    x = 46,183,598,808.89/245,302.52
  6. Step 6: Final answer
    x = 188,272.02

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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.