Home / 209,398.02-288,905.31-118,749.30

Finding the Fourth Proportional to 209,398.02, 288,905.31 and 118,749.30

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Solution

The fourth proportional to 209,398.02, 288,905.31 and 118,749.30 is: 163,837.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,398.02 : 288,905.31 = 118,749.30 : x
  2. Step 2: Convert to fraction form
    209,398.02/288,905.31 = 118,749.30/x
  3. Step 3: Cross multiply
    209,398.02x = 288,905.31 × 118,749.30
  4. Step 4: Simplify right side
    209,398.02x = 34,307,303,328.78
  5. Step 5: Solve for x
    x = 34,307,303,328.78/209,398.02
  6. Step 6: Final answer
    x = 163,837.76

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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.