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Finding the Fourth Proportional to 357,275.77, 535,505.98 and 143,907.11

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Solution

The fourth proportional to 357,275.77, 535,505.98 and 143,907.11 is: 215,696.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,275.77 : 535,505.98 = 143,907.11 : x
  2. Step 2: Convert to fraction form
    357,275.77/535,505.98 = 143,907.11/x
  3. Step 3: Cross multiply
    357,275.77x = 535,505.98 × 143,907.11
  4. Step 4: Simplify right side
    357,275.77x = 77,063,117,249.98
  5. Step 5: Solve for x
    x = 77,063,117,249.98/357,275.77
  6. Step 6: Final answer
    x = 215,696.46

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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.