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Finding the Fourth Proportional to 238,353.84, 328,929.66 and 130,920.30

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Solution

The fourth proportional to 238,353.84, 328,929.66 and 130,920.30 is: 180,670.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,353.84 : 328,929.66 = 130,920.30 : x
  2. Step 2: Convert to fraction form
    238,353.84/328,929.66 = 130,920.30/x
  3. Step 3: Cross multiply
    238,353.84x = 328,929.66 × 130,920.30
  4. Step 4: Simplify right side
    238,353.84x = 43,063,569,766.10
  5. Step 5: Solve for x
    x = 43,063,569,766.10/238,353.84
  6. Step 6: Final answer
    x = 180,670.76

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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.