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Finding the Fourth Proportional to 346,799.80, 519,810.90 and 147,086.20

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Solution

The fourth proportional to 346,799.80, 519,810.90 and 147,086.20 is: 220,464.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,799.80 : 519,810.90 = 147,086.20 : x
  2. Step 2: Convert to fraction form
    346,799.80/519,810.90 = 147,086.20/x
  3. Step 3: Cross multiply
    346,799.80x = 519,810.90 × 147,086.20
  4. Step 4: Simplify right side
    346,799.80x = 76,457,009,999.58
  5. Step 5: Solve for x
    x = 76,457,009,999.58/346,799.80
  6. Step 6: Final answer
    x = 220,464.40

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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.