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Finding the Fourth Proportional to 230,347.20, 345,569.28 and 130,555.20

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Solution

The fourth proportional to 230,347.20, 345,569.28 and 130,555.20 is: 195,860.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,347.20 : 345,569.28 = 130,555.20 : x
  2. Step 2: Convert to fraction form
    230,347.20/345,569.28 = 130,555.20/x
  3. Step 3: Cross multiply
    230,347.20x = 345,569.28 × 130,555.20
  4. Step 4: Simplify right side
    230,347.20x = 45,115,866,464.26
  5. Step 5: Solve for x
    x = 45,115,866,464.26/230,347.20
  6. Step 6: Final answer
    x = 195,860.28

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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.