Home / 284,577.91-392,742.37-157,278.11

Finding the Fourth Proportional to 284,577.91, 392,742.37 and 157,278.11

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Solution

The fourth proportional to 284,577.91, 392,742.37 and 157,278.11 is: 217,057.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,577.91 : 392,742.37 = 157,278.11 : x
  2. Step 2: Convert to fraction form
    284,577.91/392,742.37 = 157,278.11/x
  3. Step 3: Cross multiply
    284,577.91x = 392,742.37 × 157,278.11
  4. Step 4: Simplify right side
    284,577.91x = 61,769,775,903.41
  5. Step 5: Solve for x
    x = 61,769,775,903.41/284,577.91
  6. Step 6: Final answer
    x = 217,057.52

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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.