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Finding the Fourth Proportional to 238,035.95, 328,495.65 and 130,605.95

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Solution

The fourth proportional to 238,035.95, 328,495.65 and 130,605.95 is: 180,239.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,035.95 : 328,495.65 = 130,605.95 : x
  2. Step 2: Convert to fraction form
    238,035.95/328,495.65 = 130,605.95/x
  3. Step 3: Cross multiply
    238,035.95x = 328,495.65 × 130,605.95
  4. Step 4: Simplify right side
    238,035.95x = 42,903,486,439.12
  5. Step 5: Solve for x
    x = 42,903,486,439.12/238,035.95
  6. Step 6: Final answer
    x = 180,239.52

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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.