Home / 305,127.51-457,421.64-115,456.17

Finding the Fourth Proportional to 305,127.51, 457,421.64 and 115,456.17

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Solution

The fourth proportional to 305,127.51, 457,421.64 and 115,456.17 is: 173,082.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,127.51 : 457,421.64 = 115,456.17 : x
  2. Step 2: Convert to fraction form
    305,127.51/457,421.64 = 115,456.17/x
  3. Step 3: Cross multiply
    305,127.51x = 457,421.64 × 115,456.17
  4. Step 4: Simplify right side
    305,127.51x = 52,812,152,080.44
  5. Step 5: Solve for x
    x = 52,812,152,080.44/305,127.51
  6. Step 6: Final answer
    x = 173,082.24

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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.