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Finding the Fourth Proportional to 615.16, 916.84 and 610.08

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Solution

The fourth proportional to 615.16, 916.84 and 610.08 is: 909.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.16 : 916.84 = 610.08 : x
  2. Step 2: Convert to fraction form
    615.16/916.84 = 610.08/x
  3. Step 3: Cross multiply
    615.16x = 916.84 × 610.08
  4. Step 4: Simplify right side
    615.16x = 559,345.75
  5. Step 5: Solve for x
    x = 559,345.75/615.16
  6. Step 6: Final answer
    x = 909.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.