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Finding the Fourth Proportional to 290,303.54, 435,278.46 and 130,348.41

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Solution

The fourth proportional to 290,303.54, 435,278.46 and 130,348.41 is: 195,443.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,303.54 : 435,278.46 = 130,348.41 : x
  2. Step 2: Convert to fraction form
    290,303.54/435,278.46 = 130,348.41/x
  3. Step 3: Cross multiply
    290,303.54x = 435,278.46 × 130,348.41
  4. Step 4: Simplify right side
    290,303.54x = 56,737,855,168.25
  5. Step 5: Solve for x
    x = 56,737,855,168.25/290,303.54
  6. Step 6: Final answer
    x = 195,443.21

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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.