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Finding the Fourth Proportional to 315,878.16, 473,643.72 and 155,601.43

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Solution

The fourth proportional to 315,878.16, 473,643.72 and 155,601.43 is: 233,316.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,878.16 : 473,643.72 = 155,601.43 : x
  2. Step 2: Convert to fraction form
    315,878.16/473,643.72 = 155,601.43/x
  3. Step 3: Cross multiply
    315,878.16x = 473,643.72 × 155,601.43
  4. Step 4: Simplify right side
    315,878.16x = 73,699,640,734.57
  5. Step 5: Solve for x
    x = 73,699,640,734.57/315,878.16
  6. Step 6: Final answer
    x = 233,316.67

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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.