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Finding the Fourth Proportional to 315,383.60, 473,075.40 and 284,279.60

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Solution

The fourth proportional to 315,383.60, 473,075.40 and 284,279.60 is: 426,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,383.60 : 473,075.40 = 284,279.60 : x
  2. Step 2: Convert to fraction form
    315,383.60/473,075.40 = 284,279.60/x
  3. Step 3: Cross multiply
    315,383.60x = 473,075.40 × 284,279.60
  4. Step 4: Simplify right side
    315,383.60x = 134,485,685,481.84
  5. Step 5: Solve for x
    x = 134,485,685,481.84/315,383.60
  6. Step 6: Final answer
    x = 426,419.40

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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.