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Finding the Fourth Proportional to 312,004.80, 430,529.58 and 176,030.82

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Solution

The fourth proportional to 312,004.80, 430,529.58 and 176,030.82 is: 242,901.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,004.80 : 430,529.58 = 176,030.82 : x
  2. Step 2: Convert to fraction form
    312,004.80/430,529.58 = 176,030.82/x
  3. Step 3: Cross multiply
    312,004.80x = 430,529.58 × 176,030.82
  4. Step 4: Simplify right side
    312,004.80x = 75,786,475,001.66
  5. Step 5: Solve for x
    x = 75,786,475,001.66/312,004.80
  6. Step 6: Final answer
    x = 242,901.63

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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.