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Finding the Fourth Proportional to 243,864.32, 335,784.93 and 213,479.60

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Solution

The fourth proportional to 243,864.32, 335,784.93 and 213,479.60 is: 293,947.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,864.32 : 335,784.93 = 213,479.60 : x
  2. Step 2: Convert to fraction form
    243,864.32/335,784.93 = 213,479.60/x
  3. Step 3: Cross multiply
    243,864.32x = 335,784.93 × 213,479.60
  4. Step 4: Simplify right side
    243,864.32x = 71,683,232,542.43
  5. Step 5: Solve for x
    x = 71,683,232,542.43/243,864.32
  6. Step 6: Final answer
    x = 293,947.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.