Home / 279,485.30-385,689.19-152,160.59

Finding the Fourth Proportional to 279,485.30, 385,689.19 and 152,160.59

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Solution

The fourth proportional to 279,485.30, 385,689.19 and 152,160.59 is: 209,981.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,485.30 : 385,689.19 = 152,160.59 : x
  2. Step 2: Convert to fraction form
    279,485.30/385,689.19 = 152,160.59/x
  3. Step 3: Cross multiply
    279,485.30x = 385,689.19 × 152,160.59
  4. Step 4: Simplify right side
    279,485.30x = 58,686,693,946.22
  5. Step 5: Solve for x
    x = 58,686,693,946.22/279,485.30
  6. Step 6: Final answer
    x = 209,981.33

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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.