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Finding the Fourth Proportional to 369,455.76, 509,095.68 and 254,769.36

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Solution

The fourth proportional to 369,455.76, 509,095.68 and 254,769.36 is: 351,062.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,455.76 : 509,095.68 = 254,769.36 : x
  2. Step 2: Convert to fraction form
    369,455.76/509,095.68 = 254,769.36/x
  3. Step 3: Cross multiply
    369,455.76x = 509,095.68 × 254,769.36
  4. Step 4: Simplify right side
    369,455.76x = 129,701,980,572.37
  5. Step 5: Solve for x
    x = 129,701,980,572.37/369,455.76
  6. Step 6: Final answer
    x = 351,062.28

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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.