Home / 191,741.40-287,903.70-147,418.20

Finding the Fourth Proportional to 191,741.40, 287,903.70 and 147,418.20

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Solution

The fourth proportional to 191,741.40, 287,903.70 and 147,418.20 is: 221,351.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,741.40 : 287,903.70 = 147,418.20 : x
  2. Step 2: Convert to fraction form
    191,741.40/287,903.70 = 147,418.20/x
  3. Step 3: Cross multiply
    191,741.40x = 287,903.70 × 147,418.20
  4. Step 4: Simplify right side
    191,741.40x = 42,442,245,227.34
  5. Step 5: Solve for x
    x = 42,442,245,227.34/191,741.40
  6. Step 6: Final answer
    x = 221,351.49

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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.