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Finding the Fourth Proportional to 340,870.80, 511,459.80 and 163,309.20

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Solution

The fourth proportional to 340,870.80, 511,459.80 and 163,309.20 is: 245,037.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,870.80 : 511,459.80 = 163,309.20 : x
  2. Step 2: Convert to fraction form
    340,870.80/511,459.80 = 163,309.20/x
  3. Step 3: Cross multiply
    340,870.80x = 511,459.80 × 163,309.20
  4. Step 4: Simplify right side
    340,870.80x = 83,526,090,770.16
  5. Step 5: Solve for x
    x = 83,526,090,770.16/340,870.80
  6. Step 6: Final answer
    x = 245,037.39

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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.