Home / 316,864.20-475,296.30-130,009.80

Finding the Fourth Proportional to 316,864.20, 475,296.30 and 130,009.80

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Solution

The fourth proportional to 316,864.20, 475,296.30 and 130,009.80 is: 195,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,864.20 : 475,296.30 = 130,009.80 : x
  2. Step 2: Convert to fraction form
    316,864.20/475,296.30 = 130,009.80/x
  3. Step 3: Cross multiply
    316,864.20x = 475,296.30 × 130,009.80
  4. Step 4: Simplify right side
    316,864.20x = 61,793,176,903.74
  5. Step 5: Solve for x
    x = 61,793,176,903.74/316,864.20
  6. Step 6: Final answer
    x = 195,014.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.