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Finding the Fourth Proportional to 292,445.40, 438,365.70 and 159,043.80

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Solution

The fourth proportional to 292,445.40, 438,365.70 and 159,043.80 is: 238,401.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,445.40 : 438,365.70 = 159,043.80 : x
  2. Step 2: Convert to fraction form
    292,445.40/438,365.70 = 159,043.80/x
  3. Step 3: Cross multiply
    292,445.40x = 438,365.70 × 159,043.80
  4. Step 4: Simplify right side
    292,445.40x = 69,719,346,717.66
  5. Step 5: Solve for x
    x = 69,719,346,717.66/292,445.40
  6. Step 6: Final answer
    x = 238,401.24

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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.