Home / 279,870.90-386,220.93-152,546.49

Finding the Fourth Proportional to 279,870.90, 386,220.93 and 152,546.49

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Solution

The fourth proportional to 279,870.90, 386,220.93 and 152,546.49 is: 210,513.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,870.90 : 386,220.93 = 152,546.49 : x
  2. Step 2: Convert to fraction form
    279,870.90/386,220.93 = 152,546.49/x
  3. Step 3: Cross multiply
    279,870.90x = 386,220.93 × 152,546.49
  4. Step 4: Simplify right side
    279,870.90x = 58,916,646,663.99
  5. Step 5: Solve for x
    x = 58,916,646,663.99/279,870.90
  6. Step 6: Final answer
    x = 210,513.66

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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.