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Finding the Fourth Proportional to 371,009.66, 556,536.56 and 143,307.02

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Solution

The fourth proportional to 371,009.66, 556,536.56 and 143,307.02 is: 214,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,009.66 : 556,536.56 = 143,307.02 : x
  2. Step 2: Convert to fraction form
    371,009.66/556,536.56 = 143,307.02/x
  3. Step 3: Cross multiply
    371,009.66x = 556,536.56 × 143,307.02
  4. Step 4: Simplify right side
    371,009.66x = 79,755,595,934.65
  5. Step 5: Solve for x
    x = 79,755,595,934.65/371,009.66
  6. Step 6: Final answer
    x = 214,969.05

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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.