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Finding the Fourth Proportional to 243,765.16, 336,413.12 and 136,345.19

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Solution

The fourth proportional to 243,765.16, 336,413.12 and 136,345.19 is: 188,165.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,765.16 : 336,413.12 = 136,345.19 : x
  2. Step 2: Convert to fraction form
    243,765.16/336,413.12 = 136,345.19/x
  3. Step 3: Cross multiply
    243,765.16x = 336,413.12 × 136,345.19
  4. Step 4: Simplify right side
    243,765.16x = 45,868,308,401.10
  5. Step 5: Solve for x
    x = 45,868,308,401.10/243,765.16
  6. Step 6: Final answer
    x = 188,165.97

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1.5x scale

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.