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Finding the Fourth Proportional to 371,002.28, 556,127.76 and 146,521

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Solution

The fourth proportional to 371,002.28, 556,127.76 and 146,521 is: 219,633.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,002.28 : 556,127.76 = 146,521 : x
  2. Step 2: Convert to fraction form
    371,002.28/556,127.76 = 146,521/x
  3. Step 3: Cross multiply
    371,002.28x = 556,127.76 × 146,521
  4. Step 4: Simplify right side
    371,002.28x = 81,484,395,522.96
  5. Step 5: Solve for x
    x = 81,484,395,522.96/371,002.28
  6. Step 6: Final answer
    x = 219,633.14

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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.