Home / 209,377.31-288,944.01-118,731.42

Finding the Fourth Proportional to 209,377.31, 288,944.01 and 118,731.42

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Solution

The fourth proportional to 209,377.31, 288,944.01 and 118,731.42 is: 163,851.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,377.31 : 288,944.01 = 118,731.42 : x
  2. Step 2: Convert to fraction form
    209,377.31/288,944.01 = 118,731.42/x
  3. Step 3: Cross multiply
    209,377.31x = 288,944.01 × 118,731.42
  4. Step 4: Simplify right side
    209,377.31x = 34,306,732,607.79
  5. Step 5: Solve for x
    x = 34,306,732,607.79/209,377.31
  6. Step 6: Final answer
    x = 163,851.25

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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.