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Finding the Fourth Proportional to 243,574.80, 364,973.40 and 203,917.20

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Solution

The fourth proportional to 243,574.80, 364,973.40 and 203,917.20 is: 305,550.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,574.80 : 364,973.40 = 203,917.20 : x
  2. Step 2: Convert to fraction form
    243,574.80/364,973.40 = 203,917.20/x
  3. Step 3: Cross multiply
    243,574.80x = 364,973.40 × 203,917.20
  4. Step 4: Simplify right side
    243,574.80x = 74,424,353,802.48
  5. Step 5: Solve for x
    x = 74,424,353,802.48/243,574.80
  6. Step 6: Final answer
    x = 305,550.30

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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.