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Finding the Fourth Proportional to 369,351.76, 509,390.16 and 254,813.10

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Solution

The fourth proportional to 369,351.76, 509,390.16 and 254,813.10 is: 351,424.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,351.76 : 509,390.16 = 254,813.10 : x
  2. Step 2: Convert to fraction form
    369,351.76/509,390.16 = 254,813.10/x
  3. Step 3: Cross multiply
    369,351.76x = 509,390.16 × 254,813.10
  4. Step 4: Simplify right side
    369,351.76x = 129,799,285,779.10
  5. Step 5: Solve for x
    x = 129,799,285,779.10/369,351.76
  6. Step 6: Final answer
    x = 351,424.58

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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.