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Finding the Fourth Proportional to 379,850.40, 569,565.25 and 155,368.47

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Solution

The fourth proportional to 379,850.40, 569,565.25 and 155,368.47 is: 232,966.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,850.40 : 569,565.25 = 155,368.47 : x
  2. Step 2: Convert to fraction form
    379,850.40/569,565.25 = 155,368.47/x
  3. Step 3: Cross multiply
    379,850.40x = 569,565.25 × 155,368.47
  4. Step 4: Simplify right side
    379,850.40x = 88,492,481,457.67
  5. Step 5: Solve for x
    x = 88,492,481,457.67/379,850.40
  6. Step 6: Final answer
    x = 232,966.67

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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.