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Finding the Fourth Proportional to 517,557.90, 775,875.15 and 201,941.40

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Solution

The fourth proportional to 517,557.90, 775,875.15 and 201,941.40 is: 302,731.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,557.90 : 775,875.15 = 201,941.40 : x
  2. Step 2: Convert to fraction form
    517,557.90/775,875.15 = 201,941.40/x
  3. Step 3: Cross multiply
    517,557.90x = 775,875.15 × 201,941.40
  4. Step 4: Simplify right side
    517,557.90x = 156,681,314,016.21
  5. Step 5: Solve for x
    x = 156,681,314,016.21/517,557.90
  6. Step 6: Final answer
    x = 302,731.95

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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.