Home / 209,256.48-288,779.64-113,769.76

Finding the Fourth Proportional to 209,256.48, 288,779.64 and 113,769.76

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Solution

The fourth proportional to 209,256.48, 288,779.64 and 113,769.76 is: 157,005.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,256.48 : 288,779.64 = 113,769.76 : x
  2. Step 2: Convert to fraction form
    209,256.48/288,779.64 = 113,769.76/x
  3. Step 3: Cross multiply
    209,256.48x = 288,779.64 × 113,769.76
  4. Step 4: Simplify right side
    209,256.48x = 32,854,390,335.69
  5. Step 5: Solve for x
    x = 32,854,390,335.69/209,256.48
  6. Step 6: Final answer
    x = 157,005.37

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1.5x scale

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.