Home / 279,802.28-386,127.21-152,477.90

Finding the Fourth Proportional to 279,802.28, 386,127.21 and 152,477.90

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Solution

The fourth proportional to 279,802.28, 386,127.21 and 152,477.90 is: 210,419.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,802.28 : 386,127.21 = 152,477.90 : x
  2. Step 2: Convert to fraction form
    279,802.28/386,127.21 = 152,477.90/x
  3. Step 3: Cross multiply
    279,802.28x = 386,127.21 × 152,477.90
  4. Step 4: Simplify right side
    279,802.28x = 58,875,866,113.66
  5. Step 5: Solve for x
    x = 58,875,866,113.66/279,802.28
  6. Step 6: Final answer
    x = 210,419.54

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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.