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Finding the Fourth Proportional to 290,675.49, 435,570.36 and 148,515.02

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Solution

The fourth proportional to 290,675.49, 435,570.36 and 148,515.02 is: 222,546.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,675.49 : 435,570.36 = 148,515.02 : x
  2. Step 2: Convert to fraction form
    290,675.49/435,570.36 = 148,515.02/x
  3. Step 3: Cross multiply
    290,675.49x = 435,570.36 × 148,515.02
  4. Step 4: Simplify right side
    290,675.49x = 64,688,740,726.81
  5. Step 5: Solve for x
    x = 64,688,740,726.81/290,675.49
  6. Step 6: Final answer
    x = 222,546.25

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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.