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Finding the Fourth Proportional to 345,558.15, 476,836.88 and 207,777.15

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Solution

The fourth proportional to 345,558.15, 476,836.88 and 207,777.15 is: 286,712.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,558.15 : 476,836.88 = 207,777.15 : x
  2. Step 2: Convert to fraction form
    345,558.15/476,836.88 = 207,777.15/x
  3. Step 3: Cross multiply
    345,558.15x = 476,836.88 × 207,777.15
  4. Step 4: Simplify right side
    345,558.15x = 99,075,806,902.41
  5. Step 5: Solve for x
    x = 99,075,806,902.41/345,558.15
  6. Step 6: Final answer
    x = 286,712.40

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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.