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Finding the Fourth Proportional to 315,054.26, 434,800.71 and 179,130.86

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Solution

The fourth proportional to 315,054.26, 434,800.71 and 179,130.86 is: 247,215.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,054.26 : 434,800.71 = 179,130.86 : x
  2. Step 2: Convert to fraction form
    315,054.26/434,800.71 = 179,130.86/x
  3. Step 3: Cross multiply
    315,054.26x = 434,800.71 × 179,130.86
  4. Step 4: Simplify right side
    315,054.26x = 77,886,224,567.41
  5. Step 5: Solve for x
    x = 77,886,224,567.41/315,054.26
  6. Step 6: Final answer
    x = 247,215.27

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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.