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Finding the Fourth Proportional to 384,097.56, 575,374.68 and 191,390.72

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Solution

The fourth proportional to 384,097.56, 575,374.68 and 191,390.72 is: 286,701.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,097.56 : 575,374.68 = 191,390.72 : x
  2. Step 2: Convert to fraction form
    384,097.56/575,374.68 = 191,390.72/x
  3. Step 3: Cross multiply
    384,097.56x = 575,374.68 × 191,390.72
  4. Step 4: Simplify right side
    384,097.56x = 110,121,374,274.97
  5. Step 5: Solve for x
    x = 110,121,374,274.97/384,097.56
  6. Step 6: Final answer
    x = 286,701.57

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1.5x scale

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.