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Finding the Fourth Proportional to 268,246, 370,189.20 and 153,545.68

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Solution

The fourth proportional to 268,246, 370,189.20 and 153,545.68 is: 211,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,246 : 370,189.20 = 153,545.68 : x
  2. Step 2: Convert to fraction form
    268,246/370,189.20 = 153,545.68/x
  3. Step 3: Cross multiply
    268,246x = 370,189.20 × 153,545.68
  4. Step 4: Simplify right side
    268,246x = 56,840,952,442.66
  5. Step 5: Solve for x
    x = 56,840,952,442.66/268,246
  6. Step 6: Final answer
    x = 211,898.60

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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.