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Finding the Fourth Proportional to 290,263.38, 435,283.21 and 112,747.02

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Solution

The fourth proportional to 290,263.38, 435,283.21 and 112,747.02 is: 169,077.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,263.38 : 435,283.21 = 112,747.02 : x
  2. Step 2: Convert to fraction form
    290,263.38/435,283.21 = 112,747.02/x
  3. Step 3: Cross multiply
    290,263.38x = 435,283.21 × 112,747.02
  4. Step 4: Simplify right side
    290,263.38x = 49,076,884,783.53
  5. Step 5: Solve for x
    x = 49,076,884,783.53/290,263.38
  6. Step 6: Final answer
    x = 169,077.08

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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.