Home / 211,030.20-316,691.10-151,916.40

Finding the Fourth Proportional to 211,030.20, 316,691.10 and 151,916.40

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Solution

The fourth proportional to 211,030.20, 316,691.10 and 151,916.40 is: 227,979.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,030.20 : 316,691.10 = 151,916.40 : x
  2. Step 2: Convert to fraction form
    211,030.20/316,691.10 = 151,916.40/x
  3. Step 3: Cross multiply
    211,030.20x = 316,691.10 × 151,916.40
  4. Step 4: Simplify right side
    211,030.20x = 48,110,571,824.04
  5. Step 5: Solve for x
    x = 48,110,571,824.04/211,030.20
  6. Step 6: Final answer
    x = 227,979.56

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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.