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Finding the Fourth Proportional to 290,011.40, 435,093.90 and 103,003.40

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Solution

The fourth proportional to 290,011.40, 435,093.90 and 103,003.40 is: 154,532.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,011.40 : 435,093.90 = 103,003.40 : x
  2. Step 2: Convert to fraction form
    290,011.40/435,093.90 = 103,003.40/x
  3. Step 3: Cross multiply
    290,011.40x = 435,093.90 × 103,003.40
  4. Step 4: Simplify right side
    290,011.40x = 44,816,151,019.26
  5. Step 5: Solve for x
    x = 44,816,151,019.26/290,011.40
  6. Step 6: Final answer
    x = 154,532.38

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1.5x scale

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.