Home / 310,384.06-428,337.61-174,409.85

Finding the Fourth Proportional to 310,384.06, 428,337.61 and 174,409.85

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Solution

The fourth proportional to 310,384.06, 428,337.61 and 174,409.85 is: 240,689.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,384.06 : 428,337.61 = 174,409.85 : x
  2. Step 2: Convert to fraction form
    310,384.06/428,337.61 = 174,409.85/x
  3. Step 3: Cross multiply
    310,384.06x = 428,337.61 × 174,409.85
  4. Step 4: Simplify right side
    310,384.06x = 74,706,298,944.28
  5. Step 5: Solve for x
    x = 74,706,298,944.28/310,384.06
  6. Step 6: Final answer
    x = 240,689.87

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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.