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Finding the Fourth Proportional to 371,008.66, 556,535.06 and 143,306.02

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Solution

The fourth proportional to 371,008.66, 556,535.06 and 143,306.02 is: 214,967.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,008.66 : 556,535.06 = 143,306.02 : x
  2. Step 2: Convert to fraction form
    371,008.66/556,535.06 = 143,306.02/x
  3. Step 3: Cross multiply
    371,008.66x = 556,535.06 × 143,306.02
  4. Step 4: Simplify right side
    371,008.66x = 79,754,825,838.99
  5. Step 5: Solve for x
    x = 79,754,825,838.99/371,008.66
  6. Step 6: Final answer
    x = 214,967.56

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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.