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Finding the Fourth Proportional to 292,322.80, 403,439.50 and 243,177.60

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Solution

The fourth proportional to 292,322.80, 403,439.50 and 243,177.60 is: 335,613.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,322.80 : 403,439.50 = 243,177.60 : x
  2. Step 2: Convert to fraction form
    292,322.80/403,439.50 = 243,177.60/x
  3. Step 3: Cross multiply
    292,322.80x = 403,439.50 × 243,177.60
  4. Step 4: Simplify right side
    292,322.80x = 98,107,449,355.20
  5. Step 5: Solve for x
    x = 98,107,449,355.20/292,322.80
  6. Step 6: Final answer
    x = 335,613.40

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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.