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Finding the Fourth Proportional to 290,536.07, 435,935.66 and 148,308.03

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Solution

The fourth proportional to 290,536.07, 435,935.66 and 148,308.03 is: 222,529.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,536.07 : 435,935.66 = 148,308.03 : x
  2. Step 2: Convert to fraction form
    290,536.07/435,935.66 = 148,308.03/x
  3. Step 3: Cross multiply
    290,536.07x = 435,935.66 × 148,308.03
  4. Step 4: Simplify right side
    290,536.07x = 64,652,758,199.81
  5. Step 5: Solve for x
    x = 64,652,758,199.81/290,536.07
  6. Step 6: Final answer
    x = 222,529.20

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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.