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Finding the Fourth Proportional to 385,817, 532,427.73 and 216,055.04

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Solution

The fourth proportional to 385,817, 532,427.73 and 216,055.04 is: 298,156.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,817 : 532,427.73 = 216,055.04 : x
  2. Step 2: Convert to fraction form
    385,817/532,427.73 = 216,055.04/x
  3. Step 3: Cross multiply
    385,817x = 532,427.73 × 216,055.04
  4. Step 4: Simplify right side
    385,817x = 115,033,694,502.26
  5. Step 5: Solve for x
    x = 115,033,694,502.26/385,817
  6. Step 6: Final answer
    x = 298,156.11

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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.