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Finding the Fourth Proportional to 359,336.68, 495,635.90 and 291,356.48

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Solution

The fourth proportional to 359,336.68, 495,635.90 and 291,356.48 is: 401,870.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,336.68 : 495,635.90 = 291,356.48 : x
  2. Step 2: Convert to fraction form
    359,336.68/495,635.90 = 291,356.48/x
  3. Step 3: Cross multiply
    359,336.68x = 495,635.90 × 291,356.48
  4. Step 4: Simplify right side
    359,336.68x = 144,406,731,185.63
  5. Step 5: Solve for x
    x = 144,406,731,185.63/359,336.68
  6. Step 6: Final answer
    x = 401,870.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.