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Finding the Fourth Proportional to 370,040.95, 510,656.50 and 200,275.08

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Solution

The fourth proportional to 370,040.95, 510,656.50 and 200,275.08 is: 276,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,040.95 : 510,656.50 = 200,275.08 : x
  2. Step 2: Convert to fraction form
    370,040.95/510,656.50 = 200,275.08/x
  3. Step 3: Cross multiply
    370,040.95x = 510,656.50 × 200,275.08
  4. Step 4: Simplify right side
    370,040.95x = 102,271,771,390.02
  5. Step 5: Solve for x
    x = 102,271,771,390.02/370,040.95
  6. Step 6: Final answer
    x = 276,379.60

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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.