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Finding the Fourth Proportional to 421,514.88, 581,686.56 and 230,526.24

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Solution

The fourth proportional to 421,514.88, 581,686.56 and 230,526.24 is: 318,124.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,514.88 : 581,686.56 = 230,526.24 : x
  2. Step 2: Convert to fraction form
    421,514.88/581,686.56 = 230,526.24/x
  3. Step 3: Cross multiply
    421,514.88x = 581,686.56 × 230,526.24
  4. Step 4: Simplify right side
    421,514.88x = 134,094,015,535.33
  5. Step 5: Solve for x
    x = 134,094,015,535.33/421,514.88
  6. Step 6: Final answer
    x = 318,124.04

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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.