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Finding the Fourth Proportional to 517,070.38, 775,605.80 and 162,112.08

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Solution

The fourth proportional to 517,070.38, 775,605.80 and 162,112.08 is: 243,168.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,070.38 : 775,605.80 = 162,112.08 : x
  2. Step 2: Convert to fraction form
    517,070.38/775,605.80 = 162,112.08/x
  3. Step 3: Cross multiply
    517,070.38x = 775,605.80 × 162,112.08
  4. Step 4: Simplify right side
    517,070.38x = 125,735,069,498.06
  5. Step 5: Solve for x
    x = 125,735,069,498.06/517,070.38
  6. Step 6: Final answer
    x = 243,168.19

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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.