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Finding the Fourth Proportional to 292,445.45, 438,668.15 and 159,437.55

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Solution

The fourth proportional to 292,445.45, 438,668.15 and 159,437.55 is: 239,156.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,445.45 : 438,668.15 = 159,437.55 : x
  2. Step 2: Convert to fraction form
    292,445.45/438,668.15 = 159,437.55/x
  3. Step 3: Cross multiply
    292,445.45x = 438,668.15 × 159,437.55
  4. Step 4: Simplify right side
    292,445.45x = 69,940,174,301.84
  5. Step 5: Solve for x
    x = 69,940,174,301.84/292,445.45
  6. Step 6: Final answer
    x = 239,156.31

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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.