Home / 387,475.02-581,196.33-134,812.67

Finding the Fourth Proportional to 387,475.02, 581,196.33 and 134,812.67

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Solution

The fourth proportional to 387,475.02, 581,196.33 and 134,812.67 is: 202,213.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,475.02 : 581,196.33 = 134,812.67 : x
  2. Step 2: Convert to fraction form
    387,475.02/581,196.33 = 134,812.67/x
  3. Step 3: Cross multiply
    387,475.02x = 581,196.33 × 134,812.67
  4. Step 4: Simplify right side
    387,475.02x = 78,352,626,135.52
  5. Step 5: Solve for x
    x = 78,352,626,135.52/387,475.02
  6. Step 6: Final answer
    x = 202,213.36

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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.