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Finding the Fourth Proportional to 233,021.54, 320,904.24 and 209,854.10

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Solution

The fourth proportional to 233,021.54, 320,904.24 and 209,854.10 is: 288,999.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,021.54 : 320,904.24 = 209,854.10 : x
  2. Step 2: Convert to fraction form
    233,021.54/320,904.24 = 209,854.10/x
  3. Step 3: Cross multiply
    233,021.54x = 320,904.24 × 209,854.10
  4. Step 4: Simplify right side
    233,021.54x = 67,343,070,471.38
  5. Step 5: Solve for x
    x = 67,343,070,471.38/233,021.54
  6. Step 6: Final answer
    x = 288,999.34

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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.