Home / 274,730.40-379,116.72-153,869.76

Finding the Fourth Proportional to 274,730.40, 379,116.72 and 153,869.76

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Solution

The fourth proportional to 274,730.40, 379,116.72 and 153,869.76 is: 212,333.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,730.40 : 379,116.72 = 153,869.76 : x
  2. Step 2: Convert to fraction form
    274,730.40/379,116.72 = 153,869.76/x
  3. Step 3: Cross multiply
    274,730.40x = 379,116.72 × 153,869.76
  4. Step 4: Simplify right side
    274,730.40x = 58,334,598,718.39
  5. Step 5: Solve for x
    x = 58,334,598,718.39/274,730.40
  6. Step 6: Final answer
    x = 212,333.98

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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.