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Finding the Fourth Proportional to 346,988.40, 521,519.40 and 301,369.20

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Solution

The fourth proportional to 346,988.40, 521,519.40 and 301,369.20 is: 452,954.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,988.40 : 521,519.40 = 301,369.20 : x
  2. Step 2: Convert to fraction form
    346,988.40/521,519.40 = 301,369.20/x
  3. Step 3: Cross multiply
    346,988.40x = 521,519.40 × 301,369.20
  4. Step 4: Simplify right side
    346,988.40x = 157,169,884,362.48
  5. Step 5: Solve for x
    x = 157,169,884,362.48/346,988.40
  6. Step 6: Final answer
    x = 452,954.29

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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.