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Finding the Fourth Proportional to 360,160.80, 539,528.40 and 315,837.60

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Solution

The fourth proportional to 360,160.80, 539,528.40 and 315,837.60 is: 473,131.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,160.80 : 539,528.40 = 315,837.60 : x
  2. Step 2: Convert to fraction form
    360,160.80/539,528.40 = 315,837.60/x
  3. Step 3: Cross multiply
    360,160.80x = 539,528.40 × 315,837.60
  4. Step 4: Simplify right side
    360,160.80x = 170,403,354,987.84
  5. Step 5: Solve for x
    x = 170,403,354,987.84/360,160.80
  6. Step 6: Final answer
    x = 473,131.32

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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.