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Finding the Fourth Proportional to 406,000.40, 608,741.40 and 169,437.20

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Solution

The fourth proportional to 406,000.40, 608,741.40 and 169,437.20 is: 254,047.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,000.40 : 608,741.40 = 169,437.20 : x
  2. Step 2: Convert to fraction form
    406,000.40/608,741.40 = 169,437.20/x
  3. Step 3: Cross multiply
    406,000.40x = 608,741.40 × 169,437.20
  4. Step 4: Simplify right side
    406,000.40x = 103,143,438,340.08
  5. Step 5: Solve for x
    x = 103,143,438,340.08/406,000.40
  6. Step 6: Final answer
    x = 254,047.63

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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.