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Finding the Fourth Proportional to 371,010.66, 556,538.06 and 143,308.02

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Solution

The fourth proportional to 371,010.66, 556,538.06 and 143,308.02 is: 214,970.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,010.66 : 556,538.06 = 143,308.02 : x
  2. Step 2: Convert to fraction form
    371,010.66/556,538.06 = 143,308.02/x
  3. Step 3: Cross multiply
    371,010.66x = 556,538.06 × 143,308.02
  4. Step 4: Simplify right side
    371,010.66x = 79,756,367,433.24
  5. Step 5: Solve for x
    x = 79,756,367,433.24/371,010.66
  6. Step 6: Final answer
    x = 214,970.55

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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.