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Finding the Fourth Proportional to 490,837.68, 736,256.16 and 158,413.68

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Solution

The fourth proportional to 490,837.68, 736,256.16 and 158,413.68 is: 237,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,837.68 : 736,256.16 = 158,413.68 : x
  2. Step 2: Convert to fraction form
    490,837.68/736,256.16 = 158,413.68/x
  3. Step 3: Cross multiply
    490,837.68x = 736,256.16 × 158,413.68
  4. Step 4: Simplify right side
    490,837.68x = 116,633,047,728.27
  5. Step 5: Solve for x
    x = 116,633,047,728.27/490,837.68
  6. Step 6: Final answer
    x = 237,620.40

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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.