Home / 209,064.72-288,512.40-113,573.28

Finding the Fourth Proportional to 209,064.72, 288,512.40 and 113,573.28

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Solution

The fourth proportional to 209,064.72, 288,512.40 and 113,573.28 is: 156,732.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,064.72 : 288,512.40 = 113,573.28 : x
  2. Step 2: Convert to fraction form
    209,064.72/288,512.40 = 113,573.28/x
  3. Step 3: Cross multiply
    209,064.72x = 288,512.40 × 113,573.28
  4. Step 4: Simplify right side
    209,064.72x = 32,767,299,588.67
  5. Step 5: Solve for x
    x = 32,767,299,588.67/209,064.72
  6. Step 6: Final answer
    x = 156,732.80

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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.