Home / 430,312.96-645,024.75-164,001.97

Finding the Fourth Proportional to 430,312.96, 645,024.75 and 164,001.97

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Solution

The fourth proportional to 430,312.96, 645,024.75 and 164,001.97 is: 245,833.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,312.96 : 645,024.75 = 164,001.97 : x
  2. Step 2: Convert to fraction form
    430,312.96/645,024.75 = 164,001.97/x
  3. Step 3: Cross multiply
    430,312.96x = 645,024.75 × 164,001.97
  4. Step 4: Simplify right side
    430,312.96x = 105,785,329,698.76
  5. Step 5: Solve for x
    x = 105,785,329,698.76/430,312.96
  6. Step 6: Final answer
    x = 245,833.47

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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.