Home / 288,413.12-432,313.32-170,140.16

Finding the Fourth Proportional to 288,413.12, 432,313.32 and 170,140.16

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Solution

The fourth proportional to 288,413.12, 432,313.32 and 170,140.16 is: 255,029.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,413.12 : 432,313.32 = 170,140.16 : x
  2. Step 2: Convert to fraction form
    288,413.12/432,313.32 = 170,140.16/x
  3. Step 3: Cross multiply
    288,413.12x = 432,313.32 × 170,140.16
  4. Step 4: Simplify right side
    288,413.12x = 73,553,857,434.93
  5. Step 5: Solve for x
    x = 73,553,857,434.93/288,413.12
  6. Step 6: Final answer
    x = 255,029.51

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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.