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Finding the Fourth Proportional to 614,685.30, 921,396.45 and 235,503.24

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Solution

The fourth proportional to 614,685.30, 921,396.45 and 235,503.24 is: 353,012.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,685.30 : 921,396.45 = 235,503.24 : x
  2. Step 2: Convert to fraction form
    614,685.30/921,396.45 = 235,503.24/x
  3. Step 3: Cross multiply
    614,685.30x = 921,396.45 × 235,503.24
  4. Step 4: Simplify right side
    614,685.30x = 216,991,849,299.50
  5. Step 5: Solve for x
    x = 216,991,849,299.50/614,685.30
  6. Step 6: Final answer
    x = 353,012.91

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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.