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Finding the Fourth Proportional to 292,651.47, 438,775.51 and 115,178.85

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Solution

The fourth proportional to 292,651.47, 438,775.51 and 115,178.85 is: 172,688.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,651.47 : 438,775.51 = 115,178.85 : x
  2. Step 2: Convert to fraction form
    292,651.47/438,775.51 = 115,178.85/x
  3. Step 3: Cross multiply
    292,651.47x = 438,775.51 × 115,178.85
  4. Step 4: Simplify right side
    292,651.47x = 50,537,658,649.96
  5. Step 5: Solve for x
    x = 50,537,658,649.96/292,651.47
  6. Step 6: Final answer
    x = 172,688.89

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1.5x scale

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.