Home / 429,962.64-645,021.51-177,105.07

Finding the Fourth Proportional to 429,962.64, 645,021.51 and 177,105.07

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Solution

The fourth proportional to 429,962.64, 645,021.51 and 177,105.07 is: 265,689.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,962.64 : 645,021.51 = 177,105.07 : x
  2. Step 2: Convert to fraction form
    429,962.64/645,021.51 = 177,105.07/x
  3. Step 3: Cross multiply
    429,962.64x = 645,021.51 × 177,105.07
  4. Step 4: Simplify right side
    429,962.64x = 114,236,579,680.06
  5. Step 5: Solve for x
    x = 114,236,579,680.06/429,962.64
  6. Step 6: Final answer
    x = 265,689.55

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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.