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Finding the Fourth Proportional to 586,158.30, 879,237.45 and 212,132.70

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Solution

The fourth proportional to 586,158.30, 879,237.45 and 212,132.70 is: 318,199.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,158.30 : 879,237.45 = 212,132.70 : x
  2. Step 2: Convert to fraction form
    586,158.30/879,237.45 = 212,132.70/x
  3. Step 3: Cross multiply
    586,158.30x = 879,237.45 × 212,132.70
  4. Step 4: Simplify right side
    586,158.30x = 186,515,014,209.62
  5. Step 5: Solve for x
    x = 186,515,014,209.62/586,158.30
  6. Step 6: Final answer
    x = 318,199.05

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Similar ratio
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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.