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Finding the Fourth Proportional to 521,017.08, 781,416.26 and 146,952.60

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Solution

The fourth proportional to 521,017.08, 781,416.26 and 146,952.60 is: 220,398.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,017.08 : 781,416.26 = 146,952.60 : x
  2. Step 2: Convert to fraction form
    521,017.08/781,416.26 = 146,952.60/x
  3. Step 3: Cross multiply
    521,017.08x = 781,416.26 × 146,952.60
  4. Step 4: Simplify right side
    521,017.08x = 114,831,148,801.88
  5. Step 5: Solve for x
    x = 114,831,148,801.88/521,017.08
  6. Step 6: Final answer
    x = 220,398.05

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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.