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Finding the Fourth Proportional to 360,915.80, 498,116.21 and 207,924.21

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Solution

The fourth proportional to 360,915.80, 498,116.21 and 207,924.21 is: 286,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,915.80 : 498,116.21 = 207,924.21 : x
  2. Step 2: Convert to fraction form
    360,915.80/498,116.21 = 207,924.21/x
  3. Step 3: Cross multiply
    360,915.80x = 498,116.21 × 207,924.21
  4. Step 4: Simplify right side
    360,915.80x = 103,570,418,412.82
  5. Step 5: Solve for x
    x = 103,570,418,412.82/360,915.80
  6. Step 6: Final answer
    x = 286,965.60

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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.