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Finding the Fourth Proportional to 400,002.57, 600,004.40 and 163,345.23

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Solution

The fourth proportional to 400,002.57, 600,004.40 and 163,345.23 is: 245,018.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,002.57 : 600,004.40 = 163,345.23 : x
  2. Step 2: Convert to fraction form
    400,002.57/600,004.40 = 163,345.23/x
  3. Step 3: Cross multiply
    400,002.57x = 600,004.40 × 163,345.23
  4. Step 4: Simplify right side
    400,002.57x = 98,007,855,902.29
  5. Step 5: Solve for x
    x = 98,007,855,902.29/400,002.57
  6. Step 6: Final answer
    x = 245,018.07

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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.