Home / 228,316.32-315,077.04-126,349.20

Finding the Fourth Proportional to 228,316.32, 315,077.04 and 126,349.20

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Solution

The fourth proportional to 228,316.32, 315,077.04 and 126,349.20 is: 174,362.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,316.32 : 315,077.04 = 126,349.20 : x
  2. Step 2: Convert to fraction form
    228,316.32/315,077.04 = 126,349.20/x
  3. Step 3: Cross multiply
    228,316.32x = 315,077.04 × 126,349.20
  4. Step 4: Simplify right side
    228,316.32x = 39,809,731,942.37
  5. Step 5: Solve for x
    x = 39,809,731,942.37/228,316.32
  6. Step 6: Final answer
    x = 174,362.18

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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.