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Finding the Fourth Proportional to 304,710.85, 457,139.18 and 127,119.16

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Solution

The fourth proportional to 304,710.85, 457,139.18 and 127,119.16 is: 190,709.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,710.85 : 457,139.18 = 127,119.16 : x
  2. Step 2: Convert to fraction form
    304,710.85/457,139.18 = 127,119.16/x
  3. Step 3: Cross multiply
    304,710.85x = 457,139.18 × 127,119.16
  4. Step 4: Simplify right side
    304,710.85x = 58,111,148,564.69
  5. Step 5: Solve for x
    x = 58,111,148,564.69/304,710.85
  6. Step 6: Final answer
    x = 190,709.15

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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.