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Finding the Fourth Proportional to 202,968.64, 280,090.96 and 112,328.40

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Solution

The fourth proportional to 202,968.64, 280,090.96 and 112,328.40 is: 155,010.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,968.64 : 280,090.96 = 112,328.40 : x
  2. Step 2: Convert to fraction form
    202,968.64/280,090.96 = 112,328.40/x
  3. Step 3: Cross multiply
    202,968.64x = 280,090.96 × 112,328.40
  4. Step 4: Simplify right side
    202,968.64x = 31,462,169,391.26
  5. Step 5: Solve for x
    x = 31,462,169,391.26/202,968.64
  6. Step 6: Final answer
    x = 155,010.00

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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.